饮食如何产生健康的大脑?

克里斯:好的，所以整个关于什么能给你一个健康的大脑，健康的身体和健康的思想的想法。最重要的是，这就是食物的作用。每个人都说，我们应该服用维生素片我们应该服用这种补充剂和那种补充剂你已经进化了，我们刚才一直在谈论进化。你已经进化了数百万年，从你吃的食物中获得健康身体所需的一切，你已经进化到在自然界中找到这些营养物质。换句话说，你的进化并不是为了从药片中获取维生素C、维生素E、维生素B12和叶酸。你在进化中吸收了这些微量的、低浓度的营养物质，这些营养物质存在于自然含有它们的食物中。把它们制成药丸，我们没有任何证据除非在罕见的情况下有罕见的疾病和罕见的缺乏状态它们确实是有价值的补充剂。没有任何证据表明，如果你只吃健康的饮食，这些东西会产生很大的影响。事实上，几年前有一个大型的荟萃分析。 Goran Bjelakovic, who's a researcher at Copenhagen University, published a big paper where they looked at thousands of cases of people taking vitamin supplements or not. They asked, were these people taking the supplements healthier or not? They in fact, found evidence for a higher mortality rate in the people who were taking certain antioxidant vitamins like vitamin A and vitamin E, compared with people who weren't taking those supplements. What we can conclude from this is that, as I was saying, food is the best source of micronutrients. As long as you have a healthy balanced diet and you don't have a deficiency state, this is probably the best way to be healthy. Trying to adjust that with special kinds of supplements is probably not useful for the average person. Now, if you are a performance athlete and you have particular demands and you're placing particular demands on your body, or you have a particular disease then this is different. But for the average person, a good healthy diet which means a good balance between proteins, fats and carbohydrates, it means a good source of fibre in the diet and so on, all those things add up to making your body healthy. If your body is healthy, your brain will be healthy because at the end of the day, your brain is your most precious organ. It's also your most metabolically hungry organ. Your brain burns off 20 per cent of the energy that you get through any seconds. The amount of energy being burned off in your brain is equivalent to a 20 watt light bulb running above your head. It's a very metabolically hungry organ. But it's living tissue and it runs on exactly the same cellular mechanisms and biochemistry that the rest of your body does. It needs all the same things that the rest of your body does. So, a healthy body does actually make a healthy brain...