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Now that's okay as long as you understand what's going on and it's reasonable for your health.
只要人们知道自己的饮食习惯,及这么做对健康是有益的,那就没问题
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But again, that's the healthy diet. That's not the junk food diet.
但是话说回来，这是健康的饮食习惯，而不是垃圾的饮食习惯。
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Let's say, just say that you're wanting to change your own diet to improve your health.
比如说,你想改变自己的饮食习惯,使自己更健康
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But overall, you want to make sure you have a healthy diet.
但整体上，你要确保你有一个健康的饮食习惯。
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Well, the only way you know is to do studies-- and we'll talk about how these are done in the next class-- linking dietary behavior, food intake with health.
了解这些的唯一方法是做研究,而在下一节课,我们会谈论具体过程,联系饮食习惯,食物摄入与健康
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All these things are very important players, so we'll talk about this and discuss what sort of things are shaping your diet, but also the world's diet and the reasons behind them.
这些因素都非常的重要,我们会对此进行讨论,并讨论是什么塑造了我们的饮食习惯,以及世界各地人们的饮食习惯,及其背后的原因
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Let me ask another question, if you give this-- and we'll talk about this in a later lecture, but if you give this diet to laboratory animal-- rats, mice, whatever-- it's very common for animals to gain a good bit of weight when given access to this diet.
我们来看另一个问题,如果你给,我们将在以后的课上讨论这个话题,但如果你给实验室动物,像小白鼠之类的,给予某种类型的饮食,这种饮食习惯会使得体重增加
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As I mentioned before is one example on the risk for breast cancer in women, so you'd randomly assign half to following their usual diet, the other half to an intervention program where people are prescribed a low fact diet, given counseling and interventions from dieticians and things, and then you look to see what happens for risk as people go forward in time.
我之前提过,这例子研究的是,女性的乳腺癌发病率,你将随机选择其中一半人按一般习惯饮食,另一半人则参与一个干预计划,其中每人都要食用,由营养学家设计推荐的低脂肪菜单,然后再看随着时间推移,被试者的发病率是怎样变化的
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Well, we'll sort through all these and discuss what a society might do to help change food preferences and food intake patterns in the society.
我们会通览所有问题然后讨论社会该做些,什么来帮助我们改变饮食偏好和饮食习惯
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We're not asking you to change anything; in fact it's best for this particular exercise to eat as you typically would so you can get a sense of what an average day would be like for you.
我们不是要求你去改变什么,事实上,对于这个作业来说,保持以前的饮食习惯是最好的,以便了解自己平时的饮食
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That is, yo-yo dieting.
也就是波动很大的饮食习惯
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And the other thing you can do is take self reports like the ones you're doing, hopefully do enough of them, and a random enough sample of the population, that you can extrapolate from that sample to the whole population, and try to estimate what people are eating in that way.
还有其他可以做的,比如大家正在做的这种个体调查,希望能把它做的充分些,如果有充足的随机样本,就可以从样本推断出,整个总体,从而推断哪类人有这样的饮食习惯
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