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Fatty acid chains are fat molecules, they behave, if you have a lot of them in solution like oil.
脂肪酸链就是脂肪分子,它们看上去好像,如果你见过富含脂类的溶液,比如油
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So how many calories, and how much fat, how many grams of fat would you say are in the following foods?
你们认为以下食物中,有多少卡路里,多少克脂肪
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Okay, so which is worse: polyunsaturated fat, monounsaturated fat, or both are pretty good for you?
请回答哪个更有害,多不饱和脂肪,单不饱和脂肪,或者是两个都对健康有益
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Okay, fat is number two, so you guys are good so far.
好的 高脂是第二个,目前为止 你们都回答得很好
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Given these relationships between diet and health -you've got too few calories are bad, too many calories are bad, too much fat is bad, other things are good-- then, what should people eat?
考虑到饮食和健康的密切关系,比如热量摄入过低不健康,摄入过高也不健康,脂肪过多不健康,还有些东西是健康的,那么,人们到底应该吃什么呢
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In any event, the saturated fats that are in these kinds of foods tend to be in the things that you associate with fatty foods like high fat meat, whole milk, etc., have a bad impact.
不论如何,这些食物中的饱和脂肪,正是你们通常称为高脂食品,如肥肉,全脂牛奶等,都是有害的
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Hydrogenation is an interesting process and will bring us to the discussion of Trans fat in just a few minutes, but it's basically when you hydrogenate a food you are altering its chemical properties to take a soft fat and make it more solid.
氢化是个有趣的过程并且,一会儿我们将由它引出反式脂肪的话题,但基本上,对食物进行氢化,是在改变食物的化学性质,将软脂酸变为硬脂酸
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And so these are the things people care about a lot and they're the ones that popular diet books are built around almost exclusively: that you should eat low fat, you should eat low carbs, high fat, they're all kinds of permutations of these that exist out there.
所以大量营养素是人们所关注的,它们也是,现在流行的饮食书籍所围绕的话题,类似人们应该吃的低脂或者应该低碳高脂,各种各样的说法都有
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