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你花了多年时间研究各种主流饮食法,自己也尝试了不少。
You've spent years researching every major diet and trying many of them yourself.
我想把这些都梳理一遍、回顾一下。
I wanna go through and review all of those.
不过首先,这段经历是怎样的呢?
But first off, what was that journey like?
嗯,挺有意思的。
Well, it was fun.
我是说,我花了几年时间写一本关于饮食演变的书。我觉得光研究还不够,既然书里大部分内容都是讲研究的,我也该亲自试试这些饮食方式。
I mean, I I've been working for quite a few years on on a book about the evolution of diet, and I thought rather than just simply studying them, which was the majority of the book, I thought I should try them as well.
所以在我写书期间,断断续续地尝试过一些。我妻子也陪我一起试过不少,她就跟着我一起体验这些不同的饮食法。
So kind of, you know, on and off as I was working on the book, my my wife who joined me for many of these diets kept trying some of these, you know, diets.
有些效果不错,有些则一般。我先简单分享一下我的亲身观察,让我对这些饮食方式有个直观感受,同时也给自己补充一些背景知识和实际体验。
Some of them some of them better, some of them worse, but just kind of give a little first of all, some participant observations so I get a sense of what these diets are like, but also to kind of add context and experience them for myself.
你在这段旅程中,曾经相信过的哪些关于食物的观点,现在不再认同了?
What did you start that journey believing about food that you no longer agree with?
天哪。
Gosh.
我对很多事情的看法都变了。
That's I changed my opinions about so many things.
我写这本书、开始这段旅程的原因是,我的研究其实主要集中在身体活动上。
I mean, the reason I started this book and this and this journey, as you say, is that, I'm actually my research is mostly on physical activity.
我研究跑步、走路、投掷以及其他各种身体活动的进化,但我也教营养学、消化和生理学之类的课程。
I'm I I study the evolution of running and walking and throwing and and various other physical activities, but I also teach nutrition and digestion and physiology and, you know, that kind of stuff.
我读了相关文献。
And I read the literature.
几年前,我和一些同事教了一门关于饮食和运动的课程,我读到的内容让我非常困惑。
And a few years ago, actually, with some, colleagues, I taught a course on diet and exercise, and I've just been so confused by what I read.
对吧?
Right?
因为一方面,你可以在《新英格兰医学杂志》——可以说是世界顶级期刊——上看到,同一年里,有的文章说饱和脂肪对你有益,有的文章却说饱和脂肪有害。
Because one, you can read it in the New England Journal of Medicine, you know, arguably the top journal in the world, articles in the same year that tell you that saturated fat is good for you and then articles that tell you saturated fat is bad for you.
你看,有人说盐吃多了对你不好,又有人说适量吃盐其实刚刚好。
You know, this much salt is too much for you, and this much salt is actually just perfect for you.
我是说,不管是什么话题。
I mean, you you name it.
总是充满争议和困惑。
There's controversy and confusion.
所以我想自己深入探究一下这些问题。
And so I wanted to explore those problems myself.
但作为进化生物学家,我想把进化的视角、硬核的生物医学数据、文化数据、人类学数据以及经验性的信息全都整合起来,从整体的角度去思考这个问题。
But, as an evolutionary biologist, I wanted to integrate an evolutionary perspective, an evolutionary lens with hardcore biomedical data, cultural data, anthropological data, experiential, know, information, all that together to think about it in whole.
所以,我这么做主要是为了给自己解答一些疑问。
So so my so I was really trying to do this in order to answer questions for myself.
用进化的视角来看待饮食和营养评估,通常能发现哪些被忽略的关键点呢?
What use does an evolutionary lens give you that is typically missed when people make assessments about diet and nutrition?
哎呀,这可真是个难题。
Oh, gosh.
真不知道从哪儿说起。
It's hard to know where to start.
我们这行有句名言:脱离进化论,生物学的一切都讲不通。
There's a famous expression in my field that nothing in biology makes sense except in the light of evolution.
这是西奥多修斯·杜布赞斯基在1972年写的。
It was written by a guy named Theodosius Dubzhenski in 1972.
他的意思是,人类并不是被设计出来的。
And what he meant was that we didn't we weren't engineered.
我们并不是被设计出来的。
We weren't designed.
我们是进化而来的。
We evolved.
如果你能理解事物之所以如此的原因,你就得从进化的角度去看问题。
And if you understand why things are the way they are, you need to take an evolutionary perspective.
对吧?
Right?
所以进化论能解释很多‘为什么’的问题。
So evolution answers a lot of why questions.
当你开始思考这些‘为什么’的时候,你对‘怎么做’和‘是什么’的看法也会跟着改变。
And when you start addressing why questions, you begin to think differently also about how questions and what questions.
也就是说,既然没有东西能在进化论之外找到意义,饮食自然也不例外。
So so, mean, so nothing makes sense in Sept in the Light of Evolution, and diet is no exception.
感觉营养学和饮食观念有点像新兴的宗教。
It feels like nutrition and diet are a little bit like new religions.
这里存在教条主义。
There's dogma.
这是个非常敏感的话题。
It's a super sensitive topic.
人们很容易陷入派系对立。
People get tribal.
无论你提供多少证据,都很难改变他们的信念。
It's often impossible to change their belief no matter how much evidence you give them.
你觉得为什么会这样?
Why do you think that's the case?
为什么人们会变得如此狂热?
Why do people become so ardent?
对对对,我完全同意你的看法。
That's that's I completely agree with you.
事实上,我觉得写这本书最大的收获之一,就是发现人们对饮食的态度有多么部落化。
And in fact, I think that one of my biggest takeaways from working on the book was just how tribal people are about their diet.
我也不知道确切答案,但我猜大概是这样:在几百万年或几千年里,取决于你选择的时间尺度,人们都是按照自己文化的规矩来吃饭的。
And I and I I I don't know the the answer, but I suspect it has goes something along the lines of this, which is that for for millions of years or thousands of years, depending on which timescale you want, people ate the way their culture dictated.
对吧?
Right?
如果你住在中东,你就会像中东人那样吃。
If you lived in The Middle East, you'd eat like a Middle Easterner.
如果你住在日本,你就会像日本人那样吃。
And if you lived in Japan, you'd eat like a Japanese person.
而如今我们生活的世界里,大家吃的东西都差不多,很多传统制度也在逐渐瓦解。
And now we live in a world where everybody kinda eats the same stuff, and, and a lot of, institutions are sort of crumbling.
我觉得人们正在寻找身份认同,而定义自己的方式之一,就是我们吃什么,或者更常见的是,我们不吃什么。
And I think people are searching for identity, and I think one of the ways in which we define ourselves is by what we eat or very often by what we don't eat.
对吧?
Right?
其实这种情况一直如此。
And and that's been sort of the case all along.
你懂吧?
You know?
如果你遵守犹太洁食戒律,就不会吃这个。
If you're kosher, you don't eat this.
如果你推崇耆那教徒,那个也不吃,等等等等,这种例子很多。
If you're if you're Jain, you don't eat that, etcetera, etcetera.
但我认为,人们寻找的是意义和身份认同,而饮食确实是一个非常重要的定义方式。
But but I think, people are searching for for meaning and identity, and diet is really important way of defining that.
很多饮食方式,我是说,有些饮食法有点像邪教。
A lot of the a lot of diet, I mean, some diets are kinda like cults.
我是说,它们有点像网上的
I mean, they're sort of online
营养神学。
Nutritional theology.
它们有点像网上的邪教,大家都这么觉得。
There are kinda online cults, everybody kind of agrees.
有点像集体思维。
It's kind of like groupthink.
你知道为什么我觉得至少部分原因是这样吗?因为我们都明白,我们吃的饮食与长寿有关。
You know why I think, at least part of it, is because we all understand that the diet that we eat is related to longevity.
当有人说他们不同意我们的饮食,或者他们偏离了我们吃的东西时,我们面临的是对我们自身存在的威胁:如果这个人是对的,那么隐含的意思是,如果我深信我的饮食,而他们也深信他们的,并且我们的意见分歧,那可能意味着他们会比我活得更久,或者意味着我可能会更早死,或者意味着我在某种程度上是错的。
What we are faced with when somebody says that they disagree with our they diverge from what it is that we're eating, it's kind of a threat against our own existence that if this person is right, implicit in that, if I believe deeply about my diet and they believe deeply about theirs and we diverge in our opinions, that means maybe they're gonna live longer than me, or that means that maybe I'm gonna die sooner, or that means that I'm wrong in some sort of a way.
这不是一个抽象的讨论。
It's not an abstract discussion.
这会有现实层面的影响。
It's got it's gonna have real world implications.
这些影响迟早会显现出来。
This is gonna come into land at some point.
对。
Yeah.
不过我觉得你刚才提到的一个关键词是“信念”。
But I think the one of the key words you just said is belief.
对吧?
Right?
因为饮食真正的问题在于,它对健康的影响需要很多年才能显现出来。
Because one of the real problems about diet is that it takes years, many years for the effects of diets to manifest themselves in terms of our health.
所以我们在选择饮食时,都得靠一点信念。
And so we all have to take leaps of faith when we pick our diet.
对吧?
Right?
我是说,现在嘛,你看,我就说我吃地中海饮食吧。
I mean, right now, I'm you know, let's just say I follow the the Mediterranean diet.
你知道,关于地中海饮食对我有多好,我想研究多少就能研究多少,但要等上三十年、四十年,可能五十年,才能知道是不是真的对。
You know, I can read all the the studies I want about how good the Mediterranean diet is for me, but I won't know for thirty, forty years, maybe fifty years, if if it's true.
对吧?
Right?
所以我们在选择饮食的时候,某种程度上都得凭着一种信赖去赌一把。
So we all have to take a leap of faith to some extent when we pick a diet.
有的人的信赖来自朋友、来自自己所在的小圈子、社区。
Some people take leaps of faith based on their friends, their the group, the community.
有些人则更科学一些。
Others are a little bit more scientific.
但不管你是谁,你都得弄清楚自己到底相信什么,以及打算信任什么样的信息、以什么为依据。
But, no matter who you are, you have to figure out what you believe and how you're gonna or what information you're gonna use, to credit.
好的。
Okay.
咱们来聊聊几种饮食流派。
Let's get into some of the religions.
其中两大阵营可能是纯素食者和肉食主义者。
Maybe two of the most ardent groups are vegans and carnivores.
植物性饮食真的更胜一筹吗?
Plant based diets superior?
你知道的,我尽量不对任何事情妄加评判。
You know, I try not to be that judgmental about anything.
我的意思是,如果你看数据的话,你看。
I mean, if you look at the data, look.
不管是什么饮食理念,包括那些流行一时的减肥法,几乎都有一定的事实依据,食肉饮食也不例外。
No matter what you everybody who has a particular diet idea, including the fad diets, almost all of them are based on some grain of truth, all of them, the carnivore diet included.
不过,当你查看大型荟萃分析和大规模研究的数据时,我认为大家基本没有争议,那就是各种植物性饮食——它们并不完全相同——在长期研究和荟萃分析中,往往能带来更好的健康结果。
However, when you look at the data and you look at, like, big meta analyses, large scale studies, I don't think there's much contest that, you know, plant based diets of various sorts, and they're not all the same, tend to have better health outcomes, in terms of meta analyses, long term studies.
此外,还有相关的机制性数据支持。
And there's also mechanistic data as well.
所以我觉得,如果你要在动物和植物之间选边站的话,科学证据很明确,选植物。
So, I think if you're gonna on the side of animals versus plants, I I think that science is pretty clear, plants.
为什么?
Why?
天哪。
Gosh.
原因太多了。
There are a lot of reasons for that.
首先,不是所有植物都一样。
Well, one is that plants, again, not not all plants are the same.
如果你吃的是垃圾植物,对吧,像糖啊,高度精制的谷物和碳水啊,那你的饮食就不太健康。
If you eat crap plants, right, if you eat sugar and, you know, highly refined grains and carbohydrates, you're not eating a very healthy diet.
我的意思是,很多超加工食品其实都是植物成分。
I mean, a lot of ultra processed foods are mostly plant.
但这不代表它们健康,植物基并不等于健康。
That doesn't make them the fact that they're plant based doesn't make them healthy.
所以说,如果我们把问题想得太简单,反而容易把自己绕进去。
But so so so we you know, it's when we oversimplify, we can get ourselves into trouble.
不过有证据表明,尽管我们进化过程中以肉食为主,肉类在我们的进化史上一直扮演着重要角色。
But, but there's evidence that that, meat for even though we evolved to eat meat, meat has been played an important part in our evolution history.
肉类很有营养。
Meat is nutritious.
这一点毫无疑问。
There's no question about that.
但比如有些研究显示,吃肉量和患癌风险之间存在剂量反应效应。
But for example, there are studies which show that there's a dose response effect between how much meat you eat and your risk of cancer.
我觉得是每份肉,他们算作85克,会增加你在若干年内的患癌风险,大概是13%。
I think it's, like, serving of meat, which I think they count as 85, increases your your your risk of cancer over over x years by, I think, thirteen percent.
如果你把摄入量翻倍,风险也会翻倍。
And if you and you double that, it you double the risk.
所以确实存在剂量反应效应。
So there's a there's a dose response effect.
所以这就是流行病学数据,而且有不少研究都证明了这一点。
So that's a that's this epidemiological data, and there are quite a few studies which show that.
其次,还有一些机制研究。
Secondly, there are mechanistic studies.
对吧?
Right?
比如我们知道,肉类里有一种蛋白质叫肉碱。
So we know, for example, that meat has a protein called carnitine.
肉碱进入肠道后,会转化成另一种分子,叫TMAO。
And carnitine, when it goes to your gut, is transformed into another molecule called TMAO.
别让我给你拼这个分子的全称。
Don't ask me to give you the long form of the of the of the molecule.
TMAO是一种已知的炎症分子,会引起炎症,而且已经被证明与动脉粥样硬化,也就是动脉硬化,有机制上的关联,从而导致血压升高。
And t m TMAO is a known, inflammatory molecule that causes inflammation and has been associated with risk of of, actually, it's been shown to be mechanistically related to atherosclerosis, to hardening of the arteries, so increased blood pressure.
肉类的另一个影响是,红肉,不是禽肉或鱼肉,含有一种糖蛋白。
Another effect of meat is that that, red meat, not not, not poultry or fish, has a has a glycoprotein.
糖蛋白就是那种,你知道,每个细胞表面都有那种像森林一样的小糖蛋白分子伸出来。
So a glycoprotein is a little you know, every cell has these little kind of, like, forest of of, like, sugar protein molecules that stick off.
而红肉含有一种特殊的糖蛋白,叫做NEU5GC。
And red meat has a particular kind of glycoprotein called NEU five g c.
其实名字不重要。
I mean, that doesn't really matter with the the name.
但事实证明,人类对这种物质会产生炎症反应。
But turns out that humans have an inflammatory response to that.
所有人类吗?
All humans?
所有人类。
All humans.
有一种叫CMAH的基因,它让我们把一种蛋白聚糖转化成另一种,这导致我们对所有红肉都有反应。
It is a gene called CMAH, which causes us to, to to transform one proteoglycan into another kind, and that makes us, have a response to any red meat.
这也被认为是前面提到的那个数据的另一个机制性原因,即吃肉的量与癌症风险之间存在关联。
And, and that's also been argued to be another mechanistic reason for the the data I mentioned earlier that there's a relationship between dosage of meat eating and and cancer risk.
但话说回来,事情没那么简单,因为凡事都有代价。
But, again, it's not so simple because everything has trade offs.
对吧?
Right?
没有哪种食物是没有代价的,肉也只是其中之一。
There's no such food that doesn't have a trade off, and and meat is just one of them.
而且,当然,问题在于肉虽不一定,但往往饱和脂肪含量比较高。
And, so the other of course, the issue about meat is that meat tends not always, but tends to have a higher amount of saturated fat.
而饱和脂肪是这世上最有争议的东西之一。
And saturated fat is one of the most controversial things on the planet.
对吧?
Right?
尤其是涉及到营养的时候。
And when especially when it comes to nutrition.
而且我们每个人对饱和脂肪的反应差异很大。
And and we all don't we don't you you there's a lot of variation in how we respond to to saturated fat.
我们有些人可以随便吃饱和脂肪,也不会有任何负面影响。
Some of us can eat as much saturated fat as we want, and it doesn't really have any negative effect.
但其他人确实对饱和脂肪有某种遗传易感性,这会增加他们患心脏病的风险,因为会提高脂蛋白或胆固醇分子的水平。
But others, do have some genetic susceptibility to saturated fat, and it does raise their the risk of it will raise the levels of of lipoproteins or cholesterol molecules that cause heart disease.
所以这很复杂。
So it's complicated.
任何事情都没有简单的答案。
There's there's just never a simple answer for anything.
看起来也许有些
It's seems like maybe some of
植物性饮食之所以有更好的结果,至少从流行病学角度看,可能不是因为植物里有什么,而是因为没吃进去的肉里没有什么。
the reasons for plant based diets having better outcomes, at least epidemiologically, is not maybe to do with what's in the plants, but what's not in the meat that isn't being eaten.
这就像是一种排除肉类的饮食,而不是包含植物的饮食。
It's like the the elimination diet of meat as opposed to the inclusion diet of plants.
当然。
Of course.
我的意思是,这也是研究营养学的一个难题,因为每当你不吃某种东西时,你其实是在吃别的东西。
I mean, that's part of the problem with studying nutrition, which is that every time you don't eat something, you're eating something else.
或者反过来说,每当你吃某种东西时,你就没在吃别的东西。
Or every time you eat something, you're not eating something else.
确实是这样。
Yeah.
差不多吧。
Or almost.
所以这就是为什么你知道,没法做那种研究的原因之一。
So so that's one of the reasons why, you know, you can't do a study.
对吧?
Right?
不可能有人去做那种研究,比如找一百对双胞胎,让其中一组只吃肉。
I can't I there's no one is ever gonna do a study where they take, you know, a 100 groups of twin a 100 sets of twins and have one group of twins eat an all meat diet.
另一组只吃植物性食物。
And one group of twins eat an all plant diet.
就算真这么做了,又怎么把其他影响因素区分开呢?
And even if they did do that, how would you separate all the other effects?
对吧?
Right?
因为吃肉类饮食的那组人,他们没吃什么呢?
Because when the ones are eating the meat diet, what is it they're not eating?
而吃植物性饮食的那组人,他们又没吃什么呢?
And the ones who are eating the plant diet, what is it they're not eating?
对。
Yep.
还有怎么控制运动、吸烟,还有你知道的其他各种因素的影响。这根本做不到。
And so on and how you are correct for the effects of exercise and and and smoking and, you know, all those other factors.
这是不可能实现的。
It's it's not possible to do that.
既然有些数据对这种以大量肉类为主的饮食带来的结果持怀疑态度,为什么肉食主义运动最近却如此兴盛呢?
Why is it that the carnivore movement has had such a boon recently if some of the data seems to be skeptical about the kind of outcomes of a very heavy meat based diet?
你知道吗,这对我来说有点神秘。
You know, that's a bit of a mystery to me.
我觉得部分原因是,再说一次,这有点部落化。
I mean, I think part of it is, again, it's a bit tribal.
我认为肉与男子气概和阳刚之气有关。
I think meat is associated with manliness and and, you know, masculinity.
我觉得这解释了一部分原因。
That explains, I think, some of it.
在书里,我提到过,你知道,詹姆斯·布朗特,那个英国歌手,对。
In the book, I I recount, you know, James Blunt, the English, singer Yes.
他尝试了全肉饮食,结果得了坏血病。
Went on an all meat diet and ended up getting scurvy.
但他描述说,他这么做的原因是他觉得这样更男人。
But he describes, he describes that, that the reason he did is he thought it made it more manly.
现在,我的意思是,那可能不是所有人。
And now, I mean, that that that's probably not everybody.
还有其他人,他们听到播客或者其他什么,宣扬肉食饮食的好处,然后出于各种原因被吸引。
There are others who, you know, they they they hear, podcasts or or or whatever that that expound the the benefits of of a meat diet, and, they're attracted to it for one reason or another.
另外还有一个问题是,很多人的饮食习惯非常不健康。
And and and, you know, one other other issue is that a lot of people are on really unhealthy diets.
如果你选择任何一种不算糟糕的饮食,都会比现在好。
And if you pick pretty much any diet that's not a crap diet, for lack of a better term, you're gonna do better.
所以你可能会想,好吧。
And so you might think, okay.
哇。
Wow.
我吃了这么多肉。
I'm eating all this meat.
我感觉比吃很多麦当劳、喝很多汽水什么的要好。
I'm feeling better than when I ate lots of McDonald's and drank swelled lots of, you know, soda and and whatever.
但这并不意味着你在比如地中海饮食、DASH饮食或蓝色区域饮食上不会做得更好,或者其他什么。
It doesn't mean that you do wouldn't do it even better on, say, a Mediterranean diet or a DASH diet or a Blue Zones diet or, you know, fill in the blanks.
最好的饮食就是你能坚持的那种?
That the best diet is the one that you're able to stick to?
嗯,这取决于你的目标是什么。
Well, it depends what your goals are.
如果你想减肥,那绝对是的。
If you're trying to lose weight, absolutely.
我是说,实际上有一个叫做国家体重控制登记处的东西,他们分析过,因为不可能让大量人群完美地随机分配到不同饮食中。
I mean, that's actually there's something called the national weight loss registry where they've actually analyzed, again, because you can't randomize huge numbers of people to different kinds of diets perfectly.
所以这项研究做的是,他们跟踪了那些成功减肥并长期保持的人。
So what this study has done is that they've looked at they've tracked people who've managed to lose weight and keep it off for a long period of time.
我记得受访者的平均保持时间至少是六年左右,大概是五点六年那样。
I think the average for the respondents is at least six years or something like that, five point six years or something like that.
而且人们的饮食五花八门,但共同点是他们都不吃垃圾食品。
And and, and people's diets are kind of all over the place, but but what they all share is they're not junk food diets.
他们倾向于不吃太多糖、添加脂肪之类的东西。
They're tending not to eat lot of sugar and a lot of, you know, added fat and things like that.
而且他们能坚持下来,因为你知道的,很多人觉得节食很难。
And they're able to stick to them, because because, you know, a lot of people find diets hard.
对吧?
Right?
如果你选择低脂饮食,我是说,我试过低脂饮食。
If you go for a low fat diet I mean, it's I tried a low fat diet.
真的不行,脂肪让食物变得美味。
It's not it's I fat makes food tasty.
你懂的?
You know?
坚持低脂饮食真的很难,而且很多大型研究效果都不明显,因为人们根本受不了那种吃法。
Going on a low fat diet is really hard, and a lot of major studies have failed, to have very much effectiveness because people can't tolerate the diet.
他们最后又忍不住吃回高脂肪的食物了。
They they they they just start eating more fat.
结合你对肉类重要性的怀疑态度,你怎么看待现在这种推崇高蛋白的饮食风潮?
What do you make of the current protein maxing push given what sounds to me like a degree of skepticism around the importance of meat?
蛋白质现在是学校里最受欢迎的女生。
Protein is the new hot girl in school.
大家都想追她。
Everybody wants her.
大家都在摄入更多蛋白质,你怎么看待现在这股潮流?
Everybody's having more of a what do you make of the current world of
蛋白质测试?
protein testing?
我觉得这很有意思。
I find it fascinating.
我是说,蛋白质正当时。
I mean, protein's having its day.
你看,对蛋白质的兴趣确实有一定道理。
And you look, there there's some truth to the the interest in protein.
蛋白质很重要。
Protein is important.
你需要蛋白质。
It's you need protein.
每天都需要蛋白质。
There's every day, you need protein.
不吃脂肪也能活。
You can live without eating fat.
不吃碳水化合物也能活,但不吃蛋白质就不行。
You can live without eating carbohydrates, but you cannot live without eating protein.
真的吗?
Is that true?
当然。
Absolutely.
对。
Yeah.
你的身体可以把任何东西转化成脂肪,也可以把脂肪和蛋白质转化成糖,但有些氨基酸是必需的,你无法自己合成。
Your body can turn anything into fat, and your body can turn, and can your body can transform, fats and proteins into sugars, but you cannot there are a bunch of amino acids that are essential.
你必须在饮食中摄入它们,否则会有生命危险。
You have to have them in their diet or you'll die.
其实有两种脂肪酸是你需要适量摄入的,就是Omega-3和Omega-6。
There's actually two fatty acids that you need to eat a little bit of, omega three and omega six.
除此之外,你还必须吃蛋白质。
But apart from that, you you do need to eat protein.
其次,蛋白质很顶饱,所以人们吃了蛋白质后通常会感觉更饱足。
Secondly, protein is filling, so so people tend to be a little bit more sated on eating protein.
消化蛋白质需要消耗更多的能量,而且它营养很丰富。
Protein takes a little bit more energy to digest, and and it's pretty nutritious.
不过呢,情况是这样的。
But here's the thing.
我觉得很多人,尤其是那些身体活动量很大、正在经期或者怀孕的女性,都需要额外补充一些蛋白质。
And I think a lot of people, and if you're, you know, very physically active, if you're menstruating, if you're pregnant, you need you need extra protein.
随着年纪增长,人的肌肉量会流失,所以这时候摄入蛋白质就显得特别重要。
As people age, they also lose muscle mass, and it's really important for them to have protein.
但问题是这样的。
But here's the thing.
身体无法储存多余的蛋白质。
The body can't store extra protein.
如果你摄入的蛋白质超过身体所需,身体无法储存它。
If you eat more protein than your body can use, you can't store it.
那会怎样呢?
So what do you do?
它会转化为脂肪。
You turn it into turn it into fat.
所以,摄入大量蛋白质可能不会造成太大危害,除非你摄入的量达到荒谬的程度,那可能会损伤肾脏,但要做到这一点,你确实需要吃很多蛋白质。
So eating massive amounts of protein is probably not that harmful unless you get to ridiculous levels and you can do kidney damage, but you have to really eat a lot of protein for that.
所以,摄入大量蛋白质并不会带来什么巨大的好处,而且我从未见过任何有力的证据支持这种说法。
So eating huge amounts of protein is not gonna have some massive benefit, and there's no I I don't I've never seen any strong evidence to the to that say.
每磅体重一克蛋白质是标准做法。
One gram per pound of body weight is the rubric.
他们就是这么说的。
That's what they say.
对。
Yeah.
那你对每磅体重摄入一克蛋白质这个标准是怎么看的?
And what do you where do you come in to land on one gram per pound of body weight for protein consumption?
我对这个没有强烈的看法。
I don't have a strong opinion on that.
我的意思是,我觉得,你知道,我们每个人都不一样。
I mean, I think, you know, we're all different.
我觉得,我们对饮食的看法有个问题,就是把它医学化了。
I mean, part of the problem with the way we think about diet is we we we medicalize it.
对吧?
Right?
你知道,就像你刚才给了一个剂量。
You know, that you just gave a dose.
对吧?
Right?
但事情不是这么简单的。
But it doesn't work that way.
这很复杂。
It's it's complicated.
得看你在做什么、年纪多大,还有是不是在掉肌肉、有没有在锻炼,二十岁和八十岁的情况完全不一样。
It depends on what you're doing and how old you are and whether you're losing muscle and whether you're working out and whether you're 20 or when you're 80.
我觉得没人能给出一个完美的蛋白质摄入量。
I don't think anybody's able to come up with a perfect dose of protein.
我的意思是,你知道的,经济学的老定义就是:够用但别过量。
I mean, it's, you know, the old definition of economical, you know, enough but not too much.
而且我认为,我们都需要自己去摸索这一点,但这真的很难给任何一个人提供一个非常简单的诊断方案。
And I think that and we all have to figure out that out, but but it's not, you know it's it's really hard to come up with a very simple diagnosis for any human being.
这也是饮食问题的一部分原因。
And that's, again, part of the problem with diet.
我们都想有人告诉我们该怎么做。
We all we all wanna be told what to do.
我们都想让它变得简单。
We all wanna make it simple.
我们想要一个灵丹妙药。
We want a magic bullet.
我们想要一个快速的解决办法。
We want a quick fix.
但饮食和营养的问题在于,事情并不是那样运作的。
And the problem with diet and nutrition is that it doesn't work that way.
我想我们才刚刚开始探索世界各地的营养信仰,才接触了两种宗教。
I imagine we're only two religions into our nutritional theology trip around the world.
我想有些人可能已经开始感到有些不确定或困惑了。
I imagine some people are already feeling a degree of maybe uncertainty or confusion.
为什么?
Why?
好的。
Okay.
所以对我来说,摄入蛋白质很重要。
So it's important for me to have protein.
我需要它。
I need that.
这其实是必须的。
It's actually mandatory.
这是少数几样我必须要有,否则迟早会死的东西之一。
It's one of the few things that I have to have or else I'm gonna die at some point.
但也有一些相当负面的影响,尤其是红肉,从长期人群研究来看似乎如此。
But also there's some pretty sort of negative effects, especially around red meat, it seems, over long term populations.
植物性饮食似乎有点过时了,但纯肉饮食又缺少一些东西。
The plant based thing appears to maybe went out a little bit, but the carnivore thing is missing some stuff.
嗯,关于蛋白质这件事,奇怪的一点是,人们似乎把蛋白质和肉联系在一起。
Well well, what what but but one of the weird things about the whole protein thing is that people seem to associate protein with meat.
你知道吗,当你把那些植物都算进去,那些植物里有很多蛋白质。
You know, when you go out all all those plants out of there, there there there's a lot of protein in those plants.
豆子富含蛋白质。
Beans are filled with protein.
豆类富含蛋白质。
Legumes are filled with protein.
全谷物食品含有大量蛋白质。
Whole grain foods have a lot of protein.
你不必为了获取蛋白质而吃肉。
You don't need meat in order to get protein.
事实上,大豆是完整的蛋白质。
And in fact, you know, soy is a complete protein.
你完全可以靠大豆生活。
You could actually live your life off soy.
你实际上不需要吃肉来获取蛋白质。
You don't actually need to eat meat in order to get protein.
所以,把肉和蛋白质划等号,我觉得有点夸张了。
So the equation of meat with protein, I think, has been, exaggerated.
确实如此。
It's true.
肉富含蛋白质,而且是完全蛋白质。
Meat is rich in protein, and meat is a complete protein.
但你也可以从藜麦、坚果等食物中获取大量蛋白质。
But you can also get a lot of protein from quinoa and from, you know, from nuts and whatever.
你知道吗,这不是必须的,你当然可以买,而且地球上每种文化,每个农耕文化,都找到了通过谷物和豆类搭配来获取足够蛋白质的方法。
You know, it's not a you and you can certainly buy and and every culture on the planet has figured out you know, every farming culture on the planet figured out to get sufficient amounts of protein by combining a grain with a legume.
比如米饭配豆子,或者玉米配豆子。
So rice and beans or corn and beans.
这些都是世界各地文化中用来确保人们获得足够蛋白质的解决方案。
All of those are x are solutions that that cultures worldwide figured out in order to help make ensure that people got adequate amounts of protein.
百分之九十五的人纤维摄入不足,这就是为什么Momentous推出了Fiber Plus,因为单靠饮食达到每日纤维目标其实挺难的,甚至比上次上厕所还难。
Ninety five percent of people don't get enough fiber, which is why Momentous built Fiber Plus because hitting your daily fiber target through food alone is actually kinda hard, even harder than your last toilet trip.
膳食纤维可不只是管消化的。
Fiber isn't just a digestion thing.
它是肠道健康的基础,直接决定了你吸收营养的效率、能量状态的稳定性,以及身体恢复的速度。
It's the foundation of your gut health, which drives how well you absorb nutrients, how stable your energy is, and how quickly you recover.
如果你的肠道状态没调好,你做其他所有努力的效果都会大打折扣。
If your gut isn't dialed, everything else you're doing is working at a fraction of its potential.
Fiber Plus 是一款三合一配方,旨在同时改善消化功能、增强肠道屏障强度并维持血糖稳定。
Fiber Plus is a three in one formula built to address digestion, gut barrier strength, and blood sugar stability all at once.
所以我打算下次好好拉一次,给Momentous打个广告。
That's why I plan to make my next big dump Momentous.
最棒的是,他们提供三十天无理由退款保证。
Best of all, they offer a thirty day money back guarantee.
你可以买回去试用二十九天。
So you can buy it and try it for twenty nine days.
要是你不喜欢,他们就把钱退给你。
And if you don't love it, they'll give you your money back.
而且,他们还支持国际配送。
Plus, they ship internationally.
现在,通过点击下方描述中的链接,或者访问 livemomentous.com/modernwisdom 并在结账时使用优惠码 modernwisdom,你的首次订阅最高可享受 35% 的折扣,并且还有三十天退款保证。
Right now, you can get up to 35% off your first subscription and that thirty day money back guarantee by going to the link in the description below or heading to livemomentous.com/modernwisdom and using the code modern wisdom at checkout.
网址是 livemomentous.com/modernwisdom,结账时使用优惠码 modernwisdom。
That's livemomentous.com/modernwisdomandmodernwisdom at checkout.
地中海饮食被认为是地球上最健康的饮食之一。
Mediterranean diet is regarded as one of the most healthy on the planet.
是这样吗?
Is that right?
它可能比其他任何饮食都有更多的科学证据支持,这部分是因为欧洲中心主义,因为当然,你知道,欧洲人和美国人做了大部分研究,所以关于它的数据要多得多。
It has probably more scientific evidence, to support it than any other diet because and that's partly Eurocentric because, of course, you know, Europeans and do most of the research and Americans do most of the research, so there's a lot of there's a lot more data on it.
我不确定地中海饮食是否一定比传统的亚洲饮食、传统的美国饮食,或者,你知道,中美洲饮食或传统亚洲饮食更健康,但是,绝对,有大量的证据。
I'm not sure that the Mediterranean diet is necessarily healthier than a traditional Asian diet or traditional American diet or, you know, Mesoamerican diet or traditional Asian diet, but, absolutely, there's a ton.
我的意思是,如果你目前纯粹根据流行病学数据来选择,你会选择地中海饮食。
I mean, if you were gonna go purely on epidemiological data at the moment, you would pick a Mediterranean diet.
请解释一下,在饮食和营养领域,流行病学数据是什么意思?
Explain what epidemiological data in the world of diet and nutrition means?
问得好。
Excellent question.
要弄清楚食物和饮食对健康的影响,有几种方法。
So so there's a number of ways to figure out the effects of food and diet on health.
其中一种是做……如果你不介意的话,我想稍微往回讲一点。
And so one is to do, I'm gonna back up a little bit, if you don't mind.
一种方法是做随机对照研究。
So one of those do a randomized control study.
这是金标准。
That's the gold standard.
对吧?
Right?
我给你和你双胞胎兄弟两种不同的饮食,然后跟踪你们几年。
I give you and your twin two different diets, and I follow you for x number of years.
对吧?
Right?
然后我可以测量它对胆固醇水平、类固醇水平,还有鼻腔分泌物等等的影响。
And then I can measure its effect on your cholesterol levels and your this you know, your steroid levels and your, you know, your nasal mucosa production, whatever.
你知道,我想测什么都可以。
You know, I can measure anything I want.
对吧?
Right?
但当然,这需要很长时间。
But, of course, it takes a long time to do that.
所以,因为我们不能等你死了再观察,我们就得测量一些替代指标,而不是直接看你的健康结果。
And so because we can't wait for you to die, we're going to then measure proxies, right, rather than your actual health outcome.
另一种方法是取大量人群样本,然后尝试找出他们吃的食物和健康结果之间的关联。
The other is to take large samples of the people and then try to make associations between what they eat and their health outcomes.
这就是流行病学研究。
And that's what an that's an epidemiological study.
所以,在一个人群中,存在一些统计上的关联,比如人们吃什么和他们得心脏病、高血压、癌症或关节炎等疾病的可能性或患病率之间的关系。
So so there are statistical associations within a population between, say, what people eat and their likelihood or their prevalence of getting heart disease or hypertension or cancer or arthritis or whatever it is.
对于地中海饮食,既有流行病学研究,也有大规模的研究,规模非常大。
And so for, the Mediterranean diet, there are both epidemiological studies, large scale ones, huge.
我的意思是,现在有涉及数十万人的荟萃分析,但也有前瞻性研究。
I mean, they're now meta analyses involving hundreds of thousands of individuals, but they're also prospective studies.
所以,黄金标准的研究是,你找一群人,再次将他们随机分成两组。
So that's the kind of gold study is when you take a bunch of people and you, again, randomize them into two groups.
其中最大的一项研究是在西班牙进行的,例如,他们招募了超过7500名西班牙人。
So one of the biggest studies was one done in Spain, for example, where they had over 7,500 Spaniards.
他们让其中一些人采用地中海饮食,必须吃橄榄油或核桃。
And they assigned some of them a Mediterranean diet where they had to have olive oil or or walnuts.
这项研究有两个分支,与不吃地中海饮食的西班牙人进行对比。
There were two arms to that versus Spaniards who were not eating a Mediterranean diet.
大约五年后,他们停止了这项研究,因为地中海饮食的有益效果太显著了,以至于他们认为继续研究而不给对照组提供这种饮食是不道德的。
And after, I think after five years, they stopped the study because the effects the beneficial effects of the Mediterranean diet were so high that they felt that it was unethical to continue the study and and and not
不让另一组人享受地中海饮食的好处。
get Deny the other group from the benefits of having a Mediterranean diet.
没错。
That's correct.
没错。
That's correct.
那项研究太棒了。
Was so good that study.
非地中海饮食基本上被视为一种有害的
A non Mediterranean diet was essentially seen as kind of a toxic
不道德。
As unethical.
不道德。
As unethical.
不会吧。
No way.
是的。
Yes.
真有。
Way.
所以,这只是其中的一个方面。
So, so that's just one side.
在法国和其他地方还有其他研究。
There's other studies in France, elsewhere.
而且这些也是前瞻性研究。
So these are and, again, these are prospective studies.
所以这些是最好的研究。
So those are the the best studies.
对吧?
Right?
不过每项研究都有它的缺点、问题和不足。
Now every study has its drawbacks and its problems and its flaws.
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对吧?
Right?
你没法知道,因为你得考虑到人们吃的其他所有东西、他们的吸烟情况、体育活动,还有他们是不是律师之类的。
You can't know, because you have to account for for, you know, all the other things that people are eating, their smoking, their physical activity, you know, whether or they're, you know, whether they're lawyers or not.
谁知道呢?
Who knows what?
但是当你把所有这些不同的研究结合起来,而且除此之外,还有一些研究,比如在实验室里让人们吃几周地中海饮食,然后测量它对健康某些方面的影响,这些方面有明确的结果,比如胆固醇水平,或者炎症标志物。
But but when you combine all those different and and but there's and then on top of that, there are studies where you can feed people a Mediterranean diet for just a few weeks in a lab, for example, and then measure its effects on on on on aspects of your health that have a outcome, like like a cholesterol level, right, or or or so on and, or markers of inflammation.
所以你把所有这些数据结合起来,机制研究、流行病学研究、前瞻性研究,地中海饮食就显得非常……我不会说它是明显的赢家,但它可能是所有被研究过的饮食中证据最充分的。
And so you combine all those kinds of data together, the mechanistic mechanistic studies, the epidemiological studies, the perspective studies, and the Mediterranean diet comes out as a very you know, a public I wouldn't say it's a clear winner, but it's, you know, it's it's it's it's probably has the most evidence in its favor of any diet that's ever been studied.
我想在流行病学研究中,人们的饮食选择是因人而异的。
I imagine when it comes to the epidemiological studies, people's dietary choices are idiosyncratic.
它们受到他们来自的文化和他们的工作的影响。
They're informed by the culture that they're from and the the job that they have.
你知道,如果你……有一整个行业的私人教练可能吃肉过多,这意味着吃肉的人中私人教练的比例过高,但这也意味着他们有私人教练的生活方式。
You know, if you're there's an entire industry of PTs that are probably overeating meat, which means that you have meat eaters that are disproportionately personal trainers, but that means that they have the lifestyle of a personal trainer.
或者也许有文化因素,你知道,红肉是那些喜欢烧烤的南方佬吃的。
Or perhaps there's something cultural that, you know, red meat is eaten by, dudes that like to barbecue from the Deep South.
也许他们在健康方面还做了别的事,也许他们抽烟或者什么的。
Maybe they're doing other stuff with their health, maybe they're smoking or whatever.
所以,人们选择吃什么、选择哪种饮食,以及那些不在研究范围内的事情,这些选择效应会怎样?
So the, selection effect of what people eat, which diets, and what are the things that aren't under the studies purview?
那这种效应会怎样……
And what does that sort of
影响非常大,非常大。
Huge, huge effect.
比如,你知道,素食者往往也不抽烟。
Like, you know, vegetarians also tend not to smoke.
对吧?
Right?
那么,你怎么把吃素这个事实和你不抽烟这个事实分开呢?
And and so how do you separate the fact of eating a vegetarian diet, the fact that you you're much more likely to smoke?
而且那些倾向于更活跃的人,通常也会吃得更健康。
And people who, tend to be more physically active also tend to eat a healthier diet.
实际上,你知道,大型研究里,比如当你和我去世时,对吧,会有一份死亡证明,写着我们死于某种原因。
In fact, you know, big studies where they get like, when when you and I die, right, there's gonna be a death certificate, right, saying we died of such and such.
可能是癌症、心脏病发作之类的。
And it might be, you know, cancer or a heart attack or whatever.
但导致癌症的又是什么呢?
But then what was it that caused the cancer?
导致心脏病发作的又是什么?
What caused the heart attack?
对吧?
Right?
有很多流行病学家在努力研究这个问题。
And that's there's a there's a bunch of epidemiologists out there trying to try to figure that out.
许多研究在统计上无法将运动和饮食的影响分开,因为运动的人往往吃得也好,对。
And many studies are unable to separate statistically the effects of exercise and diet because people who exercise tend to eat well Mhmm.
反过来也一样。
And vice versa.
所以,这种共变关系——
So so the covariation
用户偏差。
user bias.
对。
Exactly.
所以这种共变关系,我们称之为共变关系,在统计上非常强,很难把这些因素分开。
So the covariation is what we call covariation is so strong, statistically, it's very difficult to separate these things.
那这是不是意味着营养和饮食方面的流行病学研究基本上没什么用?
Does that make epidemiological studies in nutrition and diet largely useless then?
不是。
No.
它们……所以那样想是不对的。
They're they so that's the wrong way to think about it.
流行病学研究虽然不能直接证明因果关系,但它是我们可以也应该使用的众多信息之一。
Epidemiological studies cannot measure cause and effect, but they are one of many forms of of information that we can and should use.
因为,再说一次,对于真正的怀疑论者来说,金标准研究是随机对照试验。
Because, again, you can't I mean, like, again, the gold standard study for a true skeptic is a randomized control study.
但正如我们之前讨论过的,你不可能做一个真正的随机对照试验,然后等上五十年、六十年去看饮食的效果,同时还要控制其他所有变量。
But as we had talked about before, you can't do a proper randomized control study and wait fifty, sixty years for somebody to to see the effects of the diet and control for everything else too.
所以我们得——你知道刺猬和狐狸的比喻吗?
So we we need to be do you know the the the analogy of the hedgehog and the fox?
不知道。
No.
好。
Okay.
有一个著名的文献,来自公元前七世纪,作者是帕罗斯岛的阿尔基洛科斯,他写了一句诗,他是个诗人,有点无聊的诗人。
So there's a famous, piece of paper from the seventh century BC by a guy named Archilagus of Paris, which wrote he he wrote and it's like a frag he's a poet like a boring poet.
但显然,他写的这句诗流传了下来,说的是:狐狸知道很多小事,而刺猬知道一件大事。
But but, apparently, he he wrote this, like, bit of a poem that survived, and it says, the fox knows many things, but the hedgehog knows one big thing.
他的意思是,当你追狐狸的时候,它会想尽办法逃跑。
And what he meant by that was that when you chase a fox, it'll do anything to run away.
对吧?
Right?
它会躲起来。
It'll hide.
它还会爬树什么的。
It'll it'll, you know, it'll it'll Climb a tree.
爬树。
Climb a tree.
它爱干嘛干嘛。
It'll do whatever.
对吧?
Right?
你追刺猬,它就缩成一团。
You chase a hedgehog, it just rolls into a ball.
对吧?
Right?
刺猬只会做一件事。
Hedgehogs just do one thing.
英国著名哲学家以赛亚·伯林就用这个比喻来把世界分成刺猬型和狐狸型两类人。
And that analogy was used by a very famous, English philosopher named Isaiah Berlin to think of to kind of divide the world up into hedgehogs and foxes.
所以,刺猬型的人是大思路、大概念型人才。
So so hedgehogs are big idea guys.
比如说,蛋白质就是你的答案。
Like, protein is your answer.
你知道的,肉类就是你的答案。
You know, meat is your answer.
永远不吃肉是你的答案,等等之类的。
Never EatingMeat is your answer, etcetera.
这些就是我所说的刺猬型饮食。
Those are what I call hedgehog diets.
它们就是那种只靠一个核心理念、大刀阔斧改变的饮食法。
They're single idea, big fix diets.
而狐狸型的人则能看到细微差别。
Whereas foxes are the see nuance.
他们能权衡利弊。
They see trade offs.
他们能看到事物的复杂性。
They see complexity.
他们意识到,每当你吃一样东西的时候,你就没吃另一样东西。
They realize that every time you eat one thing, you don't eat something else.
而且我认为,用刺猬式的饮食方法总是行不通的,因为饮食这件事太复杂了。
And and, and and we need to apply I think that, you know, the hedgehog approach to diet is always the wrong way because it's complicated.
每个人的情况都不一样。
People vary.
食物对人体的影响也很复杂。
The effects of foods are complicated.
这里面都有取舍。
There are trade offs.
一旦我们开始过度简化,就难免出错,就连分析科学记录的方式也不例外。
And when we start to oversimplify, we inevitably get things wrong, and that's true for even how we analyze the scientific record.
要是你觉得流行病学数据没用,因为没法验证因果关系,那你就会漏掉很多重要信息。
If we decide, well, epidemiological data, it's just junk because you can't test cause and effect, you're missing important information.
同样地,如果你认为随机对照试验问题很大,因为它们周期太短、缺乏多样性等等,那你也会错过重要的东西。
Just as if you decide, oh, you know, randomized control studies are really problematic because they're too short term and they don't involve variation or whatever, you're also missing something important.
最好的办法就是尽可能多地收集信息,然后把它们整合起来。
The best approach is to look at as much of the information as possible and put it together.
也就是说,如果允许我稍微自夸一下,这也是我写这本书的原因。我努力把这些证据都搜集起来,消化掉,用通俗易懂的语言表达出来,帮助大家理解,因为我觉得我们都需要尝试去回答这些问题。
And that's I mean, if I can be a little, you know, self promoting, that's why I wrote the book because I tried and fed up to take all that evidence and to digest it, put it into kind of plain English, and make it, you know, help people understand that because I think all of us need to try to answer these questions.
换种说法吧。
Let put let me put it another way.
在数百万年的时间里,我们的祖先必须掌握大量的知识才能获取食物。
For millions of years, millions of years, our ancestors, they had to know enormous amount to get their food.
对吧?
Right?
如果你是狩猎采集者,你得知道怎么打猎。
If you're a hunter gatherer, you know, you have to know how to hunt animals.
对吧?
Right?
你得知道它们在哪里,怎么追踪,还有,你知道的,它们会出现在什么样的环境里,以及怎么宰杀它们,还有找植物那些事。
You need to know, you know, where they are and how to track them and how you know, what's the right you know, what environments they're gonna be in and and how to butcher them and all that kind of stuff to find plants.
我是说,我真的跟狩猎采集者一起出去觅食和打猎过。
I mean, I've gone out foraging and hunting with hunter gatherers.
找植物可不是件简单的事。
Finding plants is not a trivial matter.
对吧?
Right?
要知道植物在哪里,知道怎么挖,还要知道它们在不同季节长在哪里。
Finding where the plants are, knowing how to dig for them, and knowing where they are at different seasons.
我们当时必须成为博物学家。
We had to be naturalists.
为了生存,我们必须掌握大量的信息。
We had to know a huge amount of information in order to survive.
现在你我可以走进全食超市或者别的什么超市,比如森宝利或者其他任何一家,面对的是四万种不同的食物。
Now you and I can walk into a Whole Foods or whatever, you know, whatever is Sainsbury or whatever whatever it is, and we're confronted with 40,000 different kinds of food.
我们不再需要知道如何获取食物了。
We don't know how to we don't need to know how to get our food anymore.
我们现在需要知道的是如何选择食物。
We now need to know how to choose our food.
所以我们需要一种不同的知识,你可以甩手不管,让别人告诉你该怎么做,或者你可以自己学着弄清楚你想要什么、你在乎什么、什么对你重要、你的取舍是什么。
So we we need a different kind of knowledge, and and you can you can throw up your hands and just have somebody tell you what to do, or you can try to learn for yourself what you what you want, what you care about, what's important to you, what your trade offs are.
所以我认为我们所有人都需要自我教育,去弄清楚如何选择食物,因为这是现代世界给我们设定的挑战。
So I think all of us need to educate ourselves to to figure out how to choose our food because that's the challenge our modern world has set us.
今天该吃什么这个问题,从进化角度看,是相当新颖的。
The question of what should I eat today evolutionarily is pretty novel.
这完全是全新的。
It's completely novel.
从来没有人问过这个问题。
Nobody ever asked that question.
我的意思是,和我一起工作的人……
I mean, the people I
……面对眼前的东西,因为否则我就会死。
work with what is in front of me because, otherwise, I die.
对。
Yeah.
我的意思是,我在实地工作中合作的那些人。
I mean, the people I work with in in my fieldwork.
你知道吗?
You know?
所以我在肯尼亚做了很多工作。
So I've done a lot of work in Kenya.
我最近在卢旺达工作。
I've been working recently in Rwanda.
而且,你知道,有时候,人们会邀请我吃饭,就在我们工作的那个地方。
And, you know, occasionally, people invite me for meals, right, in the in the area where we work.
我们在一个非常偏远的地方工作,实际上我们在肯尼亚一个非常偏远的地方工作了十五年,那里出了很多著名的跑步运动员。
We work in a very remote we've worked for fifteen years in a very remote part of Kenya, actually, where a lot of the famous runners are from.
我甚至都不用问我会吃到什么。
And I don't even have to ask what I'm gonna be served.
总是完全一样的饭菜。
It's always exactly the same meal.
有一道菜叫ugali,就像玉米面做的粥,配上sukumbawiki,其实就是切碎炒过的绿色蔬菜,有时候运气好会有豆子之类的。
You have a dish called ugali, which is like a like a cornmeal kind of porridge, with with either sukumbawiki, which is, which is basically colored greens that have been kinda chopped up and sauteed, or or sometimes if you're lucky with beans or something like that.
就这些。
That's it.
这就是你得到的。
That's what you get.
没人会问晚饭吃什么。
Nobody asks what's for dinner.
他们心里有数,因为他们吃的是自己种的东西。
They know it's because they eat what they grow.
这就是他们手头能弄到的所有食物了。
That's all the food that they have available to them.
我还跟那些狩猎采集者一起出去过呢。
Or I've gone out, you know, with hunter gatherers.
我有幸和狩猎采集者一起生活过一段时间。
I've had the privilege of spending some time with hunter gatherers.
他们可不像我们那样,哎呀,纠结吃什么。
They don't like, well, jeez.
今晚是吃意大利菜还是中餐?或者干脆吃点野味,比如海龟、陆龟,或者是大羚羊?
Tonight, am I gonna have Italian or Chinese or shall I have, you know, shall I have turtle or shall I have, you know, tortoise or shall I have, you know, kudu?
他们什么时候打猎成功或者采集到食物,就什么时候吃。
They eat whenever they manage to hunt and whenever they manage to gather.
就是这样。
That's it.
没有人会问晚餐吃什么。
There's no nobody asks what's for dinner.
他们吃他们种的东西,农民和狩猎采集者都是这样,这就是大多数人的生活,除了像英国国王那样的人。
They they eat what they and all this and farmers and and hunter gatherers, this is that's the way life was for for most people, except, you know, the king of England or whatever.
他可以选他想吃的东西。
He got to choose what he wanted to eat.
现在我们处在一个完全奇怪、古怪的现代环境中。
And now we're in this completely weird, bizarre, modern environment.
而且,毫不意外,我们很难适应,因为我们不仅不知道该吃什么,还面对很多真正糟糕的东西。
And and surprise, surprise, we have a hard time because not only do we not know what to eat, we're also confronted with a lot of really bad stuff.
我是说,就像我之前说的,典型的美国超市有4万种不同的食物。
I mean, typical as I said before, the typical American supermarket has 40,000 different kinds of food.
4万种。
40,000.
这真是有点不可思议。
It's kind of amazing.
而且其中超过50%是超加工食品,设计得极具吸引力、让人上瘾、方便、便宜,虽然价格现在有点上涨。
And over 50% of that is ultra processed, designed to be highly appealing, addictive, convenient, inexpensive, although that that's going up a bit.
那我们该怎么应对呢?
And and and how are we supposed to how are we supposed to cope?
我们从未进化出应对这些的机制。
We we're not we're not we never evolved the mechanisms, to handle that.
回到地中海饮食,这种饮食有什么特别之处?它似乎比其他饮食更有效,背后的机制是什么?
Going back to the Mediterranean diet, what is it about that diet that seems to what what's the mechanistic reason for why it seems to outperform others?
可能有很多原因。
There's probably a number of reasons.
再说一次,没有单一的原因。
There's, again, there's no one reason.
一个原因是它倾向于全谷物。
So one is that it tends to be whole grain.
对吧?
Right?
所以,当你把面粉精制的时候,也就是去掉外层和胚芽,这样就把很多蛋白质和膳食纤维都去掉了。
So you so when you take, flour and you refine it, right, you remove the the outer layers and you remove the germ, you're removing a lot of the protein and you're removing a lot of the fiber.
它含有健康的脂肪比例。
It's, it's it has a healthy balance of fat.
当然,它之所以出名是因为橄榄油,这是一种单不饱和脂肪酸。
So, of course, it's famous for olive oil, which is a monounsaturated fat.
如果你想的话,我们可以聊聊这个。
We can talk about that if you want.
单不饱和脂肪酸与许多健康益处有关。
And monounsaturated fats are associated with a lot of health benefits.
里面有很多水果和蔬菜。
There's a lot of fruit, a lot of vegetables.
地中海饮食通常包含鱼类,而鱼类富含Omega-3脂肪酸。
Mediterranean diet often has fish in it, and fish has these omega three fatty acids.
所以,它是各种健康营养素的组合,同时避免了很多东西,比如添加糖和很多其他不好的成分。
So it's the constellation of of nutrients that are healthy plus an absence of a lot of stuff like added sugar and a lot
那么,它主要排除了哪些东西呢?
of So what what are the things that it eliminates most?
嗯,地中海饮食通常不会含有太多添加糖。
Well, tends not you Mediterranean diet tends not to have a lot of added sugar.
对吧?
Right?
真正的地中海饮食通常不会含有那么多糖。
Tends not to have that much a proper Mediterranean.
你定义的地中海饮食,可以涵盖地中海地区的各种饮食,但营养学家定义的那种标准地中海饮食,并不一定是地中海地区人们日常吃的。
What you define as a Mediterranean diet is you can be can go all over the what what the what the Mediterranean with a capital m, capital d, right, which is what's been defined by, by the by the nutritionists, isn't necessarily what people always eat in the Mediterranean.
比如我在意大利就吃过很多高碳水化合物的晚餐。
I've spent I mean, a lot of really carb rich dinners in in Italy, for example.
但是,它通常不含添加糖,不含太多精制碳水化合物,不含太多饱和脂肪,而且食物多样,富含植物化学物质,这些物质对健康有益,还有很多抗氧化剂等等,同时红肉的量也不多。
But, but it, you know, tends not to have added sugar, tends not to have a lot of refined carbohydrates, tends not to have a lot of saturated fat, tends to be diverse and rich in in in phytochemicals that are healthy and, you know, have a lot of antioxidants and things like that, tends not to have too much red meat.
所以,这是一组被证实整体相当健康的食物组合。
So it's a it's a mixture of things that have in total been shown to to be reasonably healthy.
那它是不是最理想的饮食方案呢?
Now is it a is it a is it like an optimal diet?
它完美吗?能保证让人拥有完美的健康状态吗?
Is it perfect and will guarantee perfect health?
不是的。
No.
没有哪种饮食是完美的。
No diet is optimal.
但它确实被证明能有效预防体重增加,并降低多种疾病的风险吗?
But is it does it has it been shown to be effective for preventing weight gain and for reducing your risk of a wide range of diseases?
当然。
Absolutely.
这在多大程度上取决于生活方式呢?
How much is it the lifestyle?
我听说过地中海饮食中社交方面的重要性,还有类似的事情。
I've heard about the importance of the sociality around the Mediterranean diet and stuff like that.
那有没有被单独区分出来研究过?
Has that been separated out?
你明白我在说什么吧。
You know what I'm talking about.
对吧?
Right?
我的意思是,这又是很难做到的。
I mean, that's again, it's very hard to do that.
但是,比如说,我提到的那个西班牙研究,PREDIMED研究,通过随机分配那些生活方式可能相似的人,他们基本上是在……
But but for example, that that study I mentioned, the Spanish study, the predimed study, I mean, that that essentially by randomizing people who all presumably had similar lifestyles, They were were coming out on
晚上九点在街角和朋友喝咖啡。
the street corner having a coffee at 9PM at night there with their friends.
饮食的两个对照组可能是一样的。
Both arms of the diet were probably the same.
所以那个研究,比如说,就控制了那个变量。
So so that so that study, for example, controlled for that.
但是当然,健康和长寿不仅仅取决于饮食。
So but, of course, there's more to to health and longevity than just your diet.
那蓝色区域饮食呢?
What about blue zone diets?
天哪。
Oh my god.
别让我提那个。
Don't get me started on that one.
我是说,蓝色区域挺有意思的。
I mean, blue zones are fun.
你看。
I mean, look.
关于蓝色区域饮食有很多可以说的。
There's a lot to say about blue zone diet.
首先,你知道,它有点像地中海饮食,但肉类更少。
The first is, again, you know, if you it's kind of like a Mediterranean diet but with even less meat.
如果你看看他们推荐的内容。
And if you if you look at what they prescribes.
你知道吗?
You know?
但它也建议不吃早餐。
And but it also prescribes skipping breakfast.
它告诉你要多社交。
It tells you to be social.
它告诉你要留点剩饭。
It tells you to not finish your plate.
你知道,这里面有一些社交方面的因素。
You know, there's some social aspects to it.
好。
K.
但我觉得,如果你看这个饮食方案的推荐,特别是营养方面,其实和地中海饮食差不太远。
But but what's I find and, you know, if you look at the the the the the sort of prescription of the diet, especially nutritionally, it's kind of what a lot of you know, it's not far off from the Mediterranean diet.
我不知道有没有什么高质量的研究,把蓝色区域饮食和地中海饮食做过比较。
I don't know of any really good high quality studies for the Blue Zones diet compared to, say, the Mediterranean diet.
但我觉得蓝色区域饮食有趣的地方在于它的宣传方式,因为它被宣传和营销成一种能让你活到100岁的饮食。
But what I find amusing about the Blue Zones diet is how it's been advertised because it's advertised and marketed as a diet that'll help you live to be a 100.
而这就是我开始担心的地方,因为即使你看蓝色区域的数据,比如那些所谓的蓝色区域,地球上那五个地区。
And that's where I begin to have some concerns because even if you look at the data for the Blue Zones, like, there's these supposed blue zones, these these five regions on the planet.
它们
Where
在哪里?
are they?
让我想想。
Let's see.
其中一个在哥斯达黎加的尼科亚半岛。
One of them is in the Nicoya Peninsula Of Costa Rica.
有一个是撒丁岛上的一个小村庄。
One's a little kind of little village in Sardinia.
就是撒丁岛上的一个小地方。
It's like a little area in Sardinia.
有一个是地中海的一个岛屿。
One is an island in the Mediterranean.
我忘了那个岛的名字了。
I've forgotten the name of the island.
一个是冲绳,另一个是加利福尼亚的洛马琳达,就在洛杉矶外面。
One is, Okinawa, and the other is Loma Linda, California, right outside of LA.
好的。
Okay.
那个我还真不知道。
I didn't know that one more.
这就是五个蓝色区域。
Those are the five Blue Zones.
这些地方背后的理念是,据说这些地区活到百岁的人数是其他地方的两倍。
And and the idea behind these are these are supposedly areas where a hot twice as many people live to be centenarians.
他们能活到100岁。
They live to be 100 years old.
所以这个理念就是,如果你像这些地区的人那样饮食,你也能活到100岁。
And so the idea is if you eat like the people in these areas, you too are gonna live to be 100 years old.
不过,这其中有几个问题。
Now there's some problems with this.
首先,即使你相信这些数据,认为这些地区的百岁老人比例更高,但实际上百岁老人的比例非常小。
The first is that even if you believe the data that that these these regions have a have a higher percentage of centenarians, it turns out that the percentage of centenarians is tiny.
比如,每1万人中有6个百岁老人,而美国是每1万人中有3个。
So it's like it's like six people out of 10,000 as opposed to in The United States where it's three people out of 10,000.
基础率太低,所以微小的变化就会导致比例的巨大差异。
The base rate's so low that small changes are massive proportions.
这些是统计上的异常值。
These are statistical outliers.
所以基本上,如果你不是统计上的异常值——而我们大多数人不是——那这就跟你没关系了。
So you basically have to if you if you're not a statistical outlier, which most of us are not, it's irrelevant.
这其实没什么意义,基本上就是统计上的胡扯。
It's not a very it's statistical nonsense, basically.
其次,牛津有个人。
Secondly, there's a guy in Oxford.
他是牛津的人口统计学家。
He's a, demographer at Oxford.
我在想他的名字。
I'm trying to remember his name.
我觉得他叫索尔·纽曼。
Saul Newman, I think his name is.
他发表了一篇非常有意思的论文。
He's published this really fascinating paper.
他深入研究了这些蓝色区域,结果发现这些地方只有百分之十八的人真的有出生证明。
He did a deep dive onto these blue zones and found out that only eighteen percent of the people in these blue zones actually had birth certificates.
所以我们甚至不知道这些人是谁。
So we don't even know who these people are.
他们只是自己报告年龄,而这些地区,所以他……
They just self report their age, and these are areas so and he
你是说,蓝色地带热潮很大程度上可能是因为人们根本没有登记自己的年龄?
telling me are you telling me that a good chunk of the Blue Zone fervor could have been around the fact that people just didn't register how old they were?
没错。
Correct.
或者也可能是保险欺诈。
Or it could be insurance fraud.
我是说,我也不知道。
I mean, I have no idea.
对。
Yeah.
就是这样。
Exactly.
抱歉。
I'm sorry.
其实你上网就能查到。
It's just You can get online.
你可以读所罗门的论文。
You can read Solomon's paper.
那篇论文读起来很有意思。
It's hilarious paper to read.
不过你也可以换个角度想。
But also think about it this way.
比如,在撒丁岛有个小地方。
Like, he there's this, like, little area in Sardinia.
如果你打开蓝色区域的地图,点一下,你会看到撒丁岛。
If if you go on if you click on the Blue Zones map, there's this, like you know, think about Sardinia.
你知道,撒丁岛是个椭圆形的岛屿。
It likes you know, it's an oval shaped island.
对吧?
Right?
然后在这个岛的西边有一小块区域。
And there's this little area on the on the western side.
地图上有一个小小的蓝色区域。
There's a little blue, you know, zone on the map.
对吧?
Right?
在那个小区域里,住着很多百岁老人。
In that little area, you have all these centenarians.
你告诉我,如果往北或往南走30英里,人们的饮食习惯就完全不同了。
Now tell me that if you gotta go, like, 30 miles north or 30 miles south, that people have totally different diets.
那为什么偏偏在这个小地方,他们都是百岁老人呢?
And it's like, so why in this little spot are they all centenarians?
而就在往北或往南20英里的地方,他们却不是。
And just 20 miles north or 20 miles south, they're not.
这有点可疑。
It's kinda suspicious.
那蓝色区域的支持者对此怎么解释?
What are the what is the Blue Zone proponent explanation for that?
我觉得他没回答。
I don't think he's answered.
我不
I don't
觉得他……他是男的吗?
think he's he's Is it a guy?
是的。
Yes.
一个叫……他叫什么来着?
Guy named, what's his name?
韦特纳?
Wetner?
韦特纳?
Wetner?
我记不清了。
I can't remember.
他曾经是《国家地理》的记者,对这个特别感兴趣,然后想出了怎么把这套东西商业化。
He's a he was a he was a was a National Geographic reporter who who got really excited by this and figured out how to market all this.
但你知道,最有趣的蓝色区域之一是加利福尼亚州的洛马琳达。
But he you know, the one of the most interesting blue zones is Loma Linda, California.
你知道谁住在加利福尼亚州的洛马琳达吗?
Do you know who lives in Loma Linda, California?
为什么洛马琳达会成为蓝色区域?
What why Loma Linda is a blue zone?
因为很明显,他们不是那种吃传统食物的农民,对吧。
Because, obviously, they're not little, you know, peasanty, you know, farmers eating their traditional foods.
不是。
No.
他们是基督复临安息日会的信徒。
They're Seventh day Adventists.
基督复临安息日会的信徒不吸烟。
And the Seventh day Adventists don't believe in smoking.
他们相信锻炼身体。
They believe in exercise.
他们中的许多人都是素食主义者。
They're you know, they believe that they're they're many of them are vegetarians.
他们相信这一点。
They believe that.
他们不相信锻炼。
They don't believe in exercise.
不。
No.
他们确实相信锻炼。
They do believe in exercise.
他们认为上帝赐予了我们身体。
They they believe that you you that god gave us our bodies.
我们的身体是神圣的,作为基督徒,我们有责任好好照顾上帝赐予的身体。
Our body is a sacred thing and that it's our responsibility as, as as as as Christians to to take good care of our god given body.
所以这是一种生理神学。
And so a physiological theology.
很好。
Very good.
是的。
It is.
是的。
It is.
所以,你知道,他们不抽烟。
And and so, you know, they don't smoke.
他们锻炼身体。
They exercise.
他们很多人都是素食主义者。
They many of them are vegetarians.
他们做了所有这些事情,你知道,大多数医生都会告诉你应该这样做。
They have they do all these sorts of things that the you know, most doctors will tell you is what you should do.
你猜怎么着?
And guess what?
他们有很大比例的人活得很长。
They have a high percentage of people who live
他们吃的东西和撒丁岛的人一样吗?
in eat the same thing as the people in Sardinia?
不。
No.
当然不是。
Of course not.
他们是
They're
对,吃这个。
eating Right.
那这蓝区到底是怎么回事?
So what the fuck what what's going on with this Blue Zone thing?
说蓝区饮食不是一种饮食,这么说公平吗?
Is it fair is it fair to say that the Blue Zone diet isn't a diet?
它并没有做到它所说的那样。
It doesn't it's it doesn't do what it says it does.
嗯,我是说,如果你读《蓝色 zones》这本书,它确实告诉你要吃什么。
Well, I mean, it does if you read the Blue Zones book, it tells you what to eat.
它说每天至少吃半杯豆子。
Tells you to eat at least a half a cup of beans a day.
它说多吃蔬菜。
It tells you lots of vegetables.
它说这个不要吃太多,那个也不要吃太多。
It tells you not to eat too much of this and not too much of that.
所以它有一些参数,你知道的,但它不是一个严格定义的饮食。
So there it's got some it's got some parameters, you know, but it's not a it's not a it's not a rigidly defined diet.
而且,那些建议也不是完全离谱,但再说一次,它有点被过度推销了。
And, you know, the the suggestions aren't totally crazy, but they're again, it's it's kinda oversold.
我的意思是,比如,我书里反复提到的一个观点是,有很多人在告诉我们所谓的“最佳饮食”。
I mean, like, one of the one of my you know, the the one of the refrains from and I I know, that I keep going back to in my book is that there are a lot of people telling telling us optimal diets.
你知道吗?
You know?
我已经开始讨厌“最佳”这个词了。
And I have come to hate the word optimal.
如果你想惹我生气,就说你的
If you wanna piss me off, say your
饮食触发词。
diet trigger word.
那是我的触发词。
It's my trigger word.
如果你告诉我你的饮食是最优的,首先得问,这对你来说最优,还是对我而言最优?
If tell me your diet is optimal, first of all, is it optimal for you or optimal for me?
因为你我并不一样。
Because you and I are not the same.
对吧?
Right?
我们的基因不同。
We have different genetics.
我们的背景不一样。
We have different background.
你还年轻,身体也壮。
You're young and strong.
你的肌肉量肯定比我多,不过我可能比你跑得快。
You have a lot more muscle, you know, but I'm probably faster than you.
谁说得准呢?
Who knows?
嗯,可能突然吧。
Well, probably suddenly.
但是,我已经62岁了。
But, I'm 62.
你大概年轻得多。
You're probably a lot younger.
你知道,你更担心心脏病、阿尔茨海默症、关节炎,还是这个那个的?
You know, is is are you are you more worried about heart disease or Alzheimer's or or arthritis or this or that or the other?
你更关心环境之类的吗?
Are you are you do you care more about the environment, etcetera?
其实,根本不存在什么最优。
There's, you there's no such thing as optimal.
这不过是营销手段罢了。
And and it's it's kind of a it's just marketing.
所以我现在很反感那些声称自己饮食最优的人,因为那只是营销。
And and we and I and so I I now react against people who claim their diet is optimal because it's just marketing.
那是推销术。
It's salesmanship.
不是科学。
It's not science.
换个话题,你有没有注意到有些网站买东西特别容易,而有些却难上加难?
In other news, have you ever noticed how some websites make it ridiculously easy to buy while some feel infinitely harder?
我年轻的时候,得走十英里路才能到当地的商店。
Back in my day, I had to walk 10 miles to a local store.
你不是比我年轻吗?
Aren't you younger than me?
对。
Yeah.
但我爸因为酒驾被抓过。
But my dad got a DUI.
总之,现实是大多数企业的网站都做得不对。
Anyway, the reality is most businesses just get the website wrong.
如果你的网站设置得乱七八糟,你会损失大量销售额,这就是为什么我非常喜欢Shopify。
And if your setup is messy, you lose a ton of sales, which is why I'm such a massive fan of Shopify.
他们支撑了美国10%的电子商务,包括Gymshark、Skims、Aloe和Neutonic等品牌。
They power 10% of all ecommerce in The United States, including brands like Gymshark, Skims, Aloe, and Neutonic.
因为在将浏览者转化为买家方面,他们是最顶尖的。
Because when it comes to converting browsers into buyers, are best in class.
他们的结账流程平均比其他平台好36%,使用Shop Pay还能将转化率提高50%。
Their checkout's 36% better on average compared to other platforms, and with Shop Pay, can boost conversions by 50%.
所以,升级你的业务,使用Shopify,获得我们Neutonic使用的完全相同的结账体验。
So upgrade your business and get the exact same checkout that we use at Neutonic with Shopify.
你可以通过点击下方描述中的链接或访问shopify.com/modernwisdom注册免费试用期。
You can sign up for a free trial period by going to the link in the description below or heading to shopify.com/modernwisdom.
网址是shopify.com/modernwisdom。
That's shopify.com/modernwisdom.
好的。
Okay.
咱们再惹恼一些人吧。
Let's piss off some more people.
那低碳高脂肪呢?
What about low carb, high fat?
哦,天哪。
Oh, boy.
这次我会不会惹上大麻烦?
Am I gonna get in serious trouble after this one?
会。
Yes.
会。
Yes.
会。
Yes.
我们都觉得没问题。
We both thought it's fine.
低碳水,高脂肪。
Low carb, high fat.
嗯,再说,以前有阿特金斯减肥法。
Well, again, there Used to be Atkins.
现在流行生酮饮食。
Now it's keto.
对。
Yeah.
我是说,你看。
I mean, look.
这都取决于你的目标是什么。
Both depends what your goals are.
对吧?
Right?
事实证明,如果你想减肥,比如说,你可以通过低碳水饮食减肥,也可以通过低脂肪饮食减肥。
It turns out if you wanna if your goal is to lose weight, for example, you can lose weight on a low carb diet, and you can lose weight on a low fat diet.
确实,人们通常通过低碳水饮食比低脂饮食减掉的体重会稍微多一点。
It is true that people tend to lose a little bit more weight on low carb diets than low fat diets.
但事实上,我是那篇关于碳水化合物胰岛素模型的重大论文的合著者之一,那篇论文最近发表在《美国临床营养学杂志》上。
But the but, and in fact, I'm one of the coauthors of the carbohydrate insulin model big paper that was recently American Journal of Clinical Nutrition.
那我得恭喜你。
So I've Congratulations.
我已经把我的名字用血签上了,我相信低碳水饮食背后的生物学原理。
I've put my I've signed my name in blood on the and I believe in the biology behind, the low carb diet.
所以我们可以……
So we can Can
你能用通俗的话解释一下吗?
you explain that in layman's terms?
当然可以。
We we can.
但在那之前,让我先说明一点:几乎任何不是垃圾食品的饮食都能帮助人减肥,但难的是坚持下来。
But let's before we do, let me let me just get to this, which is that pretty much any noncrap diet can help somebody lose weight, and the hard part is to sustain it.
所以你需要区分有效性和实际效果。
And so you need to make a distinction between efficacy and effectiveness.
有效性基本上是指在理想情况下饮食的效果如何。
So efficacy is basically how well a diet works when the perfect world.
对吧?
Right?
当没有作弊,你完全按照要求吃,并且能坚持很长时间,你知道,那是完美的。
When there's no cheating and you eat exactly what you're told and you can do it for a long time and and, you know, it's perfect.
实际效果是指在现实世界中它如何运作。
Effectiveness is how it works in the real world.
事实证明,低碳水饮食在减肥方面的有效性高于低脂饮食。
And it turns out that low carb diets have this higher efficacy for weight loss than low fat diets.
这是就减肥而言,但它们的实际效果,因为人们很难坚持,嗯,
This is for weight loss, but their effectiveness, because people have a hard time sustaining them Mhmm.
只是稍微大一点。
Is only slightly larger.
对。
Right.
所以
So
如果你能做到,你可能会表现很好,但要做到这一点,难度会更大一些。
If you could do it, you might perform very well, but being able to do it, the difficulty is somewhat harder.
这很难。
It's hard.
这意味着它抵消了部分收益。
Which means that it mitigates some of those gains.
我是说,我试过。
I mean, I tried it.
我是说,我试过。
I mean, I tried it.
我试过每一种,每一种都试过。
I've tried every I've tried every single one of these.
顺便说一句,我在为这本书做研究时,做了比你所做的更科学得多的事情。
By the way, I I have done a much more science equivalent of what you did in the research for this book.
是的。
Yeah.
所有这些我都试过。
I've tried all of these.
对。
Yeah.
我的意思是,我试过阿特金斯饮食法,那很难,因为我有强烈的碳水化合物渴望。
I mean, I tried the I tried an Atkins diet, and it was hard because I I had intense carbohydrate cravings.
而且我是个跑步者,你知道,跑步者不吃碳水化合物很难。
And I'm a runner, and, you know, it's hard to be a runner and not eat carbs.
饥饿感是
The hunger is
很强烈的。
rough.
对。
Yeah.
我是说,我就是不太喜欢那种饮食方式,其实我对很多节食计划都不太感冒。
I mean, I just I just I didn't like it that much, but I didn't like a lot of the diets that much.
不过咱们来聊聊低碳水化合物饮食背后的生物学原理吧,因为真的挺有意思的。
But let's let's go into the biology behind low carb diets because because it it's really interesting.
所以当你吃东西的时候,你摄入的食物里,当然有一部分是碳水化合物。
So when you eat food, your, some of that food, of course, is carbohydrate.
碳水化合物进入身体后会被分解,其中一部分变成葡萄糖,这是两种主要糖分之一。
And carbohydrates, your body breaks down into, some of it into glucose, which is the bay one of the two major kinds of sugar.
另一种是果糖和葡萄糖。
There's fructose and glucose.
果糖主要来自水果。
Fructose is what you get from fruit.
它其实更甜一些。
It's kind of it's it's sweeter.
葡萄糖是那种更淀粉质的、你知道的,不那么甜的糖。
Glucose is the kind of more starchy, you know, less sweet form of sugar.
所以它会直接进入你的血液。
And so that and that goes goes straight into your bloodstream.
葡萄糖,你的身体只能处理非常非常小的范围,因为太多是有毒的。
Glucose is your body can only handle a very, very small range of glucose because too much is toxic.
事实上,我觉得普通人整个血液里大约只有一茶匙半的葡萄糖。
In fact, I think average human being has about a teaspoon and a half of glucose in their entire bloodstream.
如果超过这个量,你就有麻烦了。
And if it goes above that, you're in trouble.
你会变得高血糖,然后你可能会陷入严重的医疗问题。
You become hyperglycemic, and you can go into you can have serious medical problems.
所以我们的身体对葡萄糖非常敏感。
So our body is super sensitive to glucose.
所以当你吃一顿含有葡萄糖的饭时,你的血糖水平会上升。
So when you eat a meal and it has glucose in it, your your blood sugar level goes up.
因为身体必须把血糖维持在一个很窄的范围内,所以你的胰腺会释放一种叫做胰岛素的激素。
And because the body has to maintain a very tight range of glucose, you your pancreas releases a hormone called insulin.
对。
Mhmm.
胰岛素基本上就是你的生长激素。
And insulin is your basically, it's your growth hormone.
它是一种让你储存东西的激素。
It's the hormone that causes you to store stuff.
所以胰岛素让你的细胞吸收那些葡萄糖,这样血糖水平就会降下来。
So insulin causes your your your cells to take up that glucose so the levels go down.
同时,胰岛素还告诉你的细胞要保留能量。
Now insulin also tells your cells to hold on to energy.
这样就能防止你的细胞释放脂肪,因为你把能量储存为脂肪。
So so to prevent your cells from releasing releasing fat because you you store that energy as fat.
你的细胞会把葡萄糖转化成脂肪。
Your cells turn the glucose into fat.
不好意思。
Excuse me.
所以当你吃低碳水化合物饮食时,你的胰岛素水平会保持较低,这意味着你储存的脂肪更少,也不会囤积脂肪,这对你减肥很有帮助。
So when you are on a low carb diet, you keep your insulin levels low, and that means that you're storing less and also you're not holding on to that fat, and that helps you.
而且,从生物学角度来看,原理其实挺简单的。
And and that can and so so the biology is pretty simple.
我觉得这个逻辑应该很清晰了。
And I guess it's pretty clear.
不过情况会更复杂一些,因为还有另一种叫胰高血糖素的激素,这让事情变得更复杂了。
Though it gets more complicated because there's another hormone called glucagon, which makes it more complicated.
体力活动也会影响这些过程。
Physical activity affects things.
你知道的,事情从来都不会那么简单,碳水化合物-胰岛素模型也不例外。
There's you know, there's nothing is ever simple, and and and the carbohydrate insulin model is is no exception.
所以,碳水化合物-胰岛素模型背后是有基本的逻辑支撑的。
So so there's real basic logic behind the the the carbohydrate insulin model.
问题是,人们一旦开始这些低碳水饮食,就很难坚持下去。
The problem is that when people go on these low carb diets, they're hard to sustain.
很多人坚持不了太久,碳水摄入量就会慢慢回升。
And a lot of people can't maintain them for that long, and their carbohydrate levels creep up.
这样一来,饮食计划就泡汤了。
And and, and and that's the end of the diet.
但低脂饮食也能减肥,而且很多人已经做到了。
But you can also lose weight on a low fat diet, and plenty of people have.
我都不知道低脂高碳饮食还存在。
And I didn't even know that low fat, high carb diets were a thing.
这个我还没试过。
That's one that I haven't tried.
哦,其实有很多这样的饮食法。
Oh, so so there are plenty.
我的意思是,美国一些最流行的饮食法,比如普利特金饮食法和奥尼什饮食法,都是低脂的。
I mean, I mean, they were the some of the biggest diets in the country were, you know, the Pritikin diet, the Ornish diet.
有好多呢。
There's a whole bunch of
这些听起来像是《指环王》里的奇幻种族。
These sound like fantasy races from a Lord of the Rings
DASH代表的是“防治高血压的饮食方法”。
DASH stands for dietary approaches to stop hypertension.
它最初是为了……
So it was originally developed for
血压。
Blood pressure.
为了降血压,但结果发现它也是一种低脂饮食。
For blood pressure, but it turns out to be a low fat diet.
而且它实际上可能是研究第二多的饮食,仅次于地中海饮食。
And it's actually probably the second most studied diet after, after Mediterranean.
它研究得很充分。
It's very well studied.
这个饮食方案是由美国国立卫生研究院开发的,而且关于DASH饮食,有很多科学依据,还有大量的随机对照研究。
So it was developed by NIH, and there's a lot of scientific there are a of randomized controlled studies for the DASH diet.
而且坚持DASH饮食的人,顺便说一句,书里也提到了,确实会减肥。
And people who stick to the DASH diet, which which, by way, tried in the book, do lose weight.
没错。
Absolutely.
他们可以吃碳水,也确实在吃碳水。
They can and do carb.
当然,一个低脂高碳饮食的人,胰岛素水平肯定会飙升。
Surely, somebody that's on a low fat, higher carb diet is going to be ripping their insulin levels
升得更高。
up more.
不是的。
No.
因为这取决于你吃的是哪种碳水。
Because it depends on the kind of carb you eat.
因为碳水化合物有好有坏。
Because there are good carbs and there are bad carbs.
所以如果你吃精制碳水化合物,你知道,很多含糖量高的东西,很多垃圾食品,你的胰岛素水平就会飙升。
So if you eat refined carbs and, you know, lots of stuff with lots of sugar, lots of crap, your insulin level is gonna go sky high.
但如果你吃未精制的碳水化合物,对吧?
But if you eat unrefined carbs right?
如果你吃,我是说,如果我吃很多羽衣甘蓝,你知道,不管是什么,我的血糖水平会飙升吗?
If you eat I mean, if I mean, if I eat lots of kale and, you know, whatever, am I is that my my glucose level is gonna go sky high?
当然不会。
Of course not.
因为羽衣甘蓝里的所有纤维会减缓消化速度。
Because all the fiber in that kale is gonna is gonna slow the rate of digestion.
所以有很多含有碳水化合物的食物,它们的升糖指数并不高。
There's not so so there are plenty of foods that that are that have carbohydrate that are not high glycemic.
所以认为所有碳水化合物都有害,会让你血糖水平高得离谱,这种想法是不对的。
So the idea that all carbs are poisonous and cause you to raise your your your your your blood sugar levels ridiculously is just not true.
我的意思是,如果真是那样的话,因为你想啊。
I mean, if that were the case because think about it.
在人类历史的大部分时间里,人们主要吃碳水化合物。
For most of human existence, people have eaten mostly carbs.
地中海、亚洲等地的农耕饮食大多以碳水化合物为主。
All those farming diets in the Mediterranean and Asia elsewhere are mostly carbs.
他们吃玉米。
They're eating corn.
他们吃米饭。
They're eating rice.
他们吃小麦等等。
They're eating wheat, etcetera.
但直到最近,这些人中很少有人肥胖或超重。
But until recently, none of those people or very few of them were obese or or or or overweight.
所以这些饮食,你可以吃高碳水饮食,只要它富含纤维,糖分不高,而且不是高度精制的。
So these diets you can eat a a high carb diet if it's high in fiber and not high in sugar and not highly refined.
对。
Mhmm.
这些不是高血糖指数的饮食。
These are not high glycemic diets.
我在卢旺达和肯尼亚工作的地区,人们饮食中至少65%是碳水化合物。
The area in in Rwanda where I work, right, and the area in Kenya where I work, people are getting at least 65 of their diet from carbs.
至少65%。
At least 65%.
那是高碳水饮食。
That's a high carb diet.
我敢打赌,你在那个地区找不到一个超重或肥胖的人。
And I dare you to find somebody with overweight or obesity in the area.
他们不存在。
They don't exist.
完全没有。
There's none of that.
他们不在,周围没有。
They don't they're not around.
这有多少是因为碳水化合物的类型,又有多少是因为卡路里的数量?
How much of that is because of the type of carbs, and how much of that is just because of the number of calories?
嗯,他们吃了很多卡路里。
Well, they're eating a lot of calories.
这是两者的结合。
It's it's a combination.
这跟他们吃的食物种类有关。
It's it's it's the kind of foods they're eating.
比如,当我去之前提到的南迪山吃饭时,我们有Magali,还有Sukumawiki和豆子。
So they're they're eating, for example, when I go have that that meal I described earlier in the Nandi Hills, right, where we have some Magali, but we also have Sukumawiki, we have beans.
这些都是高纤维、低升糖指数的食物。
These are all high highly fibrous, low low glycemic foods.
总的来说,这是一种健康的饮食。
They're it's a generally healthy diet.
他们身体也很活跃,这也有帮助。
They're also very physically active, and that helps.
当你保持身体活动时,运动之所以能帮助人们预防体重增加,原因不仅仅是摄入和消耗的热量平衡。
And when you're physically active so one of the reasons physical activity helps people prevent weight gain, it's not just how many calories are going in versus out.
当人们非常活跃时,这会改变肌肉对胰岛素的敏感度,也就是说,对于同样分量的碳水化合物,你实际分泌的胰岛素会更少。
But when people are very physically active, it changes the insulin sensitivity of their muscles so that they're, so that they're you you actually produce less, you actually produce less insulin for a given amount of carbohydrate.
所以,事情从来都不是简单的。
So, again, nothing is simple.
而且,如果我们试图过度简化问题,就会陷入麻烦。
And and and and and when we try to oversimplify, we we get into trouble.
我希望事情能简单点,但再说一次,我主要想强调的是:请停止把复杂的多因素问题过度简化。
And and and and I wish it were simple, but, again, one of the major arguments that I'm trying to make is that as please it's a it's a plea to stop oversimplifying complex multifactorial things.
我们都得稍微多学习一些,这样才能理清市面上那些五花八门的饮食说法,看清那些想靠各种 diets 从我们身上赚钱的人到底在搞什么名堂。
We just all need to educate ourselves a little bit so that we can help make sense of all the diversity out there and all the different people out there trying to make money off of us with their various different diets.
实际情况根本不像我们被告诉的那样运作。
It it just doesn't work the way, we've been told it does.
我明白人们不应该把事情搞得太复杂或太简单,但到目前为止,我们已经聊了大概五种饮食法了,它们好像都在指向相反的方向。
I understand that people shouldn't be trying to overcomplicate or oversimplify things, but the degree of the the even just so far, we've done, like, five diets or something, and all of them kind of feel like they're pointing in the opposite direction.
你说过,低脂饮食之所以有效,是因为它不会让胰岛素飙升,但高碳水饮食只要吃对碳水也能有效。
You said, well, low fat can work because of what it doesn't do to insulin in terms of spiking insulin, but high carb can work as long as you eat the right kinds of carbs.
植物性饮食也有效,但你需要摄入蛋白质,不过蛋白质来源不重要。
And the plant based stuff that works, but you do need to get some protein, but it doesn't matter where it's from.
而且,你知道,有些人在纯肉饮食上感觉很好。
And, you know, some people feel good on the carnivore thing.
所以,我理解为什么人们会有那种不适感,那种不知所措的感觉。
But so it's I understand why people feel this, like, malaise, this degree of overwhelm.
他们会想,好吧。
They're like, okay.
我们不应该把事情简单化。
We shouldn't be oversimplifying it.
最优的就是你的俄罗斯卧底激活码。
Optimal is your Russian sleeper agent activation code word.
但与此同时,如果我这么
But at the same time, if I'm so
所以我给你个解决方案。
So I have a solution for you.
感到压力很大,我不知道该怎么办。
Burdened, I don't know what to do.
我有个解决方案,就是再说一次,还有比核心更核心的东西。
I have a I I have a solution for you, which is that, again, there's there's there are kernels even larger than kernels.
这些饮食法里其实都有一定的道理。
There are whole cobs of truth to all of these diets.
那我们为什么非得在低脂、低碳水或者低热量之间做选择呢?
And why do we have to pick between low fat versus low carb versus low calorie?
我还没提到过低热量饮食呢。
I haven't talked about low calorie.
对吧?
Right?
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