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There are very important public health victories that have occurred along the way with supplementation of these sort of things.
公共健康领域的一系列重大胜利,就是在食物添加矿物质的历程中取得的
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I think it's good because when you buy organic food, most of the times, it's healthier,
这样挺好的，因为大多数时候买有机食物更健康。
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Even if they're given healthy food at the same time, they'll tend to ignore the healthy food and eat a diet like this.
即使同时给它们喂食健康食品,它们也会选择前者的食物,而不吃健康食品
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So if you buy like, a very good healthy food today,
所以如果你今天买到了健康的好食物，
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If people don't know which foods are healthy well then it argues for education--but notice that that was almost the lowest ranked thing that people said.
要是人们不知道哪些食物是健康的,这关乎教育问题了,然而值得注意的是,这是大家提及最少的一个原因
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We'll also discuss what we perceive food to be and what we perceive is promoting health and that may be quite different than what actually promotes health.
我们还将讨论我们如何看待食物,以及我们认为的能促进健康的东西,它可能和能真正促进健康的东西完全不同
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but in the presence of the modern food environment that provides access to these things, and to foods like a pop tart with fifty-six different things in it, the body gets thrown off.
但在如今的饮食环境中,我们可以随时接触到像是果酱馅饼,这样的集五十六种成分于一身的食物,但却不利于身体健康
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There is a researcher at The Harvard Medical School named David Ludwig who's done a terrific series of studies on the glycemic index and found how it relates to food intake, body weight regulation, and health.
在哈佛医学院有一个研究员,名叫大卫·路德维格,他在血糖指数方面,做了一系列出色的研究,并发现了血糖指数与食物摄取,体重控制以及健康之间的关系
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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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But if you put a less healthy fat in you get some improvement but less.
如果加入的是不那么健康的脂肪,那么对食物质量的改善就很有限
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Does it change how humans appreciate food, what it does to their relationship with food, and of course what it does to their health and well being.
这会改变人类对待食物的方式吗,这会对人类与食物的关系有什么影响,这对人类的健康又有什么影响
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What made things go so awry that people and food used to be more in sync in terms of health and well-being, although there were problems in some ways.
是什么让一切偏离正轨,尽管有些方面存在种种问题,过去人与食物的关系,就健康方面而言,要比现在更为和谐
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And so what people should eat, and what people think they are eating, and what they actually eat is really much different, and that leads to all kinds of problems.
所以人类的健康饮食摄入量,和他们自认为食物摄入量,和人类实际摄入量有巨大差别,这导致了各种问题
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And the fact is, food is healthier if it has less trans fat, but it depends on what fat's swapped out for it, because if you put a healthier fat in then it's--then you get a certain amount of improvement.
事实是,如果食物中反式脂肪的含量较低,确实会更健康,但这取决于被剔除的脂肪种类,因为如果加入较为健康的脂肪,食物的质量会获得一定程度的改善
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Some people can fight the brain off in this case, and control their food intake, maintain a healthy diet, and maintain a normal weight, but the number of such people in the population is shrinking by the day.
有些人可以抵制大脑的控制,控制食物的摄入量,维持健康饮食 保持正常体重,而今,这类人的数量日益减少
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We'll talk about whether food can promote health; of course it can if done right, and we'll talk about the specific properties of food that promote good health and what can be done to increase the opportunity of food to improve the public's health in a national and international way.
我们将讨论食物是否能促进健康,当然,适当的饮食能促进健康,我们还将讨论健康食品的特殊性质,以及我们如何,通过食物来提高,全国乃至全世界公众的健康水平
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Now the people in this poll were asked the same question and here's what they said, so 75% said that one reason is that it's more convenient, it's what people like to eat, it's heavily advertised, it's more affordable, people may not know which foods are healthy.
在这个调查中人们也被问到了这个问题,我们来看看他们的答案,75%的人说选择垃圾食品是因为更方便,合乎口味,广告的大力宣传,更便宜,人们可能并不知道哪些食物才是健康的
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