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It's not the best form of food in that they're actually very poor in protein, and unfortunately very, very rich in cyanide.
但木薯的根并不是最好的食物,因为它的蛋白质含量很少，而更不幸的是，它的氰化物含量非常，非常高。
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But it's really healthy. It's healthy food and I think it's a way we can learn to prepare food.
但那其实很健康。食物很健康，我们应该学着那样做。
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Eating a high fat diet but one that's low in cholesterol can still potentially lead to high cholesterol levels.
食用高脂但低胆固醇的食物,仍可导致胆固醇含量偏高
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And even if you know intellectually full well that sashimi isn't why you became nauseous still you'll develop an aversion to this new food.
即使你在理智上完全清楚,并不是生鱼片让你变得恶心,但你依然会产生对于这种新食物的厌恶感。
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But we delivered the baked goods and said, "Hi, how are you? We're here now."
但我们还是把食物送了过去,说,"嗨,你好,我们刚搬来"
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I don't recall having shared my love of pizza with you before, but there it is--two favorite things I love--love pizza, delicious, love chocolate, delicious.
我不记得我以前跟你说过我对比萨饼的喜爱，但事实就是--我最喜欢的两种食物，喜欢比萨饼，好吃，喜欢巧克力，好吃。
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We take in a lot of food and water everyday, every year, and yet most of us our weight stays remarkably stable over that period of time for adults despite how much we eat and how much we drink.
日复一日年复一年,我们都摄入大量的食物和水,但我们绝大部分人的体重,在成年期都保持得很稳定,不管我们怎样大吃大喝
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But, but it's beautiful cuisine and, and so healthy and nourishes you from the inside-out, so.
但这些食物真的很美味、健康、还富有营养。
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but I really like trying new food and new recipes and I really like eating.
但我真的喜欢尝试新食物和新食谱。我真的很喜欢吃。
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But I think it's like barbecue, you know, fried foods, things like that.
但我想它和烧烤差不多，油炸食物那一类的。
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But that's changing, and more and more people do want to know the story of its food.
但这一点正在发生变化,越来越多的人想知道食物背后的故事
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Why does your body experience one food as highly pleasant, highly reinforcing, highly comforting, highly soothing even, and experience those other foods as bitter and unpleasant?
为何身体能从一种食物中获得高度愉悦感,感到极度满足,舒适,甚至感到安抚,但却觉得其他食物难以下咽呢
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Like you wouldn't expect bananas, for example, to be a high glycemic index food but it is.
比如,你可能不认为香蕉,是一种高血糖指数的食物,但它确实是
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But if you take an animal and you give it a new food and then you shock it very painfully it won't avoid the new food.
但如果你给动物吃一种新食物,然后电击它，令其感到疼痛,它仍然会进食这种食物。
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So this diet, although it's processed by a company and sold for people doing animal studies, it more or less mimics what these animals might be eating under natural conditions.
尽管这些食物经过商业加工,并用于动物科学研究,但会尽可能的模拟,实验动物在自然环境下的饮食
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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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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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If we defined food differently: that it's something that nurtures the body, something found in nature, something that doesn't harm the environment-- there are a number of criteria one can apply to define a food-- then we might come up with a different definition than this, but this is the way the nutrition field generally looks at it.
如果我们给出不同的定义,滋养身体的物质,在自然界找到的物质,不会威胁到身体的物质,有很多标准可以拿出来定义食物,我们也许可以就此重新进行定义,但这就是营养学看待食物的方式
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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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Because of that, if I eat something that's rich in glucose, so it has lots of sugar molecules, the sugar molecules can't pass between the cells.
因此,如果我吃了富含葡萄糖的食物,尽管其含有很多的糖分子,但糖分子不能从细胞间通过
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An unreinforced response is when the bell goes on but there's no food.
非强化反应是有铃声但却没食物的时候。
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That the average--- the people were reporting consuming eleven, 1200 calories or something, but when their food intake was actually measured it was over 2 000 calories.
实验对象汇报的,卡路里是1100或者1200卡,但他们实际食物摄入量,超过了2000卡
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Not that you needed more, you had to finish anything else, because you'd already finished it.
不再需要更多,你需要吃别的食物,但可乐已经够了
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And other companies have followed suit, but not all of them, and there's still as I said, a lot of Trans fats shows up in things.
其它厂商紧随其后 但并非全部,正如我所说的,食物中还含有不少的反式脂肪
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In fact, people do consume foods with cholesterol, but most of the cholesterol in the body is synthesized from foods that don't have cholesterol itself but have fat that the body turns into cholesterol.
实际上,尽管人们食用含胆固醇的食物,但人体内大多的胆固醇都是由,本身不含胆固醇的食物的脂肪,转化合成而来的
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However, their biological relatives in Mexico would presumably have that same risk, but it would never be manifested if they're not exposed to what some have called a toxic food and physical activity environment.
而且,他们远在墨西哥的血缘亲属,可能也面临同样风险,但他们面临着所谓的有毒食物和活动环境,这个说法就不会得到证实
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But I think it's a beautiful offering, as a way to prepare food without cooking.
但我觉得这样不用经过任何烹饪的食物是很美妙的。
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Some of this can be done if consumers make different choices in what they eat, but some can be silent changes too, so Frito-Lay taking the Trans fats out of their products and switching them with a healthier fat is a silent change that could have a positive impact on public health.
有些只要消费者选择其它的食物即可做到,但也有些变化是悄无声息的,菲多利将其产品中的反式脂肪,替换成更健康的脂肪就并未声张,这对大众健康有着积极的影响
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Then also a problem is you can't weigh things when you're eating out, so even if you were being incredibly precise about stuff at home and you were actually weighing things, you couldn't do that very well when you're eating out.
问题是,当你在外吃饭时无法称量食物,所以即使你在家中非常精确地测量食物,并且实际测量了每样物品,但在外吃饭时你可没法这样干
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Talking--presenting the picture to the world that, 'Well look at this wonderful thing we did, we took out the trans fats and now you can eat as much of it as you want.' They don't say it but one could infer that from the advertisement.
他们向全世界展示这样的情景,"看看我们做的这件好事吧,我们摒弃了反式脂肪酸,现在你们可以尽情享用食物了",他们并没有直接说出这样的话,但任何一个人都能从广告里看出来
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