Food composition studies are not only basic, but also essential for many purposes in nutrition, food science, and dietetics.

食物成分的研究在食品科学和人类营养学研究中既是应用基础、又是研究工具。

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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.

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。

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For answers, I spoke with Leslie Bonci, director of sports nutrition at the University of Pittsburgh Medical Center and a certified specialist in sports dietetics.

为了获得解答，我采访了来自匹兹堡医学中心大学的体育营养系主任，体育饮食认证专家Leslie Bonci。

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Laroche's study appeared in the Journal of the Academy of Nutrition and Dietetics.

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Rick Wilson, director of nutrition and dietetics at King's College Hospital London, said most cases of malnutrition were linked to other illnesses, which depressed patient's appetite.

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Marisa Moore, a registered dietitian with the Academy of Nutrition and Dietetics, says superfoods are healthy, but adding them to your plate won't simply melt the pounds away.

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