饮食学专家说，一天吃五份水果蔬菜就足够使人体获益，尽管更多的水果蔬菜可能会带来额外好处。

Dieticians say eating five a day is enough to get the protective benefits of fruit and veg - although eating more may be additionally beneficial.

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目前，为了执行这项服务，27个国家需要认证的营养师训练包括生理学，饮食学，营养学，老年医学，和其它相关的一些课程。

Currently, 27 states require that dieticians be licensed in order to perform these services. Training includes courses in physiology, dietetics, nutrition, gerontology, and related subjects.

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在过去的五年中，她和她的丈夫马克一直在努力怀孕，曼迪尝试过精神疗法，风水学，针灸，有机饮食以及一系列中药疗法。

In the five years she and her -husband Mark had been trying to -conceive, Mandy tried -spiritual -healing, feng shui, -acupuncture, organic diets and a host of herbal remedies.

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What did you learn about how easy or hard it is to keep track of what food intake is?

你从记录食物摄入过程中,学到了什么,记录饮食是难是易

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

I'd like to give you examples of three of very famous epistudies on diet and health: The Framingham Heart Study, The Seven Country Study, and The Nurses' Health Study, and then we'll talk about some of the overall results from these sort of things.

我想给大家讲有关饮食与健康的关系的,三个著名传染病学研究实验,弗明汉心脏病研究,七国研究,以及护士健康研究,然后讲一下这些因素带来的一些总体影响

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选