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We eat different kinds of things and many people think that that's what has contributed to much more heart disease.
许多人认为,我们吃许多不同的食物,这是导致更多人患心脏病的原因
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Here's a pyramid that was established from the glycemic index, so this would be a little bit different version of the pyramid.
这个金字塔是基于血糖指数建立的,这个版本的食物金字塔有些许不同
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Then of course there's sugar itself, and then there's other kinds of sugar in things like fruit.
然后当然包括食物本身含糖,另外还有水果这类食物也含不同种类的糖
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What type of different foods were they eating, and how much effort went into getting them?
他们吃着什么样不同的食物呢,他们为此付出多大的努力
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If we look at two different foods here, broccoli and the brownie on the right, they're of course much different in calories but they're different in other ways.
让我们看看两种不同的食物,左边花椰菜,右边布朗尼蛋糕,它们除了卡路里含量不同,还有其他差别
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These then became the objects of trade, of commerce, and of course of human diets and these had nutritional implications for people in different parts of the world.
这些随后成为了交易品和商品,当然,也成为了人们的日常饮食,对于来自世界不同地方的人们,这些食物都是有营养方面的考虑的
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Well, how do these two humans differ in their relationship to food?
这两类人与食物的关系有什么不同呢
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When we talk about methods to track individual food intake, there are different ways of doing this, different methods that get used and they have different levels of accuracy.
说到有关探寻,个体食物摄入的方法,有几种不同的方法,不同的方法,精确度也不同
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One is that you're supposed to eat a variety of foods and then the foods are put into different sized triangles here, depending on how much of them you should be eating.
一是你得吃多种不同的食物,各种食物也被分划在不同大小的三角形中,每个三角形的大小取决于你该吃多少
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Second, as a given, food may vary.
第二,给定的食物也会不同
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Because if you were unfettered by all those environmental things that make people eat different kinds of foods, most of you would probably like the high fat, high sugar foods better; most of you probably still do.
因为如果你可以不受这些环境因素影响,摆脱让人们吃各种不同的食物的外因,大部分人都会更喜欢高脂食品,或者高糖食品,你们中的大部分人可能依然如此
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But did anybody have the temptation at all, and maybe even yielded to it, to eat differently the day you're keeping a record so that you look good to yourself or you know, to whoever grades those?
是不是所有人都受到诱惑,甚至屈服于此,记录的时候刻意每天吃不同的食物,然后觉得自己的记录看起来会好些,这是跟谁评比吗
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There are a number of different methods that scientists use to see what foods are related to particular health outcomes, and we won't go through all of them but I will -over the course of the class we'll talk about various methods, but I'd like to talk about two primary ones today.
科学家有很多不同的方法,来研究食物与健康的关系,我们不会一一提及但我会,这门课上我们会提到很多方法,但我今天只想说两大重要方法
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