Diet is surely important, but diet alone will not do much good without an exercise plan.

VOA: special.2010.06.08

And so the amount of protein in a diet, from diet plan to diet plan, doesn't vary as much as the recommendations that these popular diets give you for fat and carbohydrate.

在不同食谱中,对于蛋白摄入量的差异,远远不如对脂肪,和碳水化合物的摄入量的差异那样大

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

He knows the world's literature on diet and health, and he's taken all that information and put together into an eating plan in this particular book.

他研究了全球关于饮食与健康的文献,并在书中把所有的相关信息,汇总成一个饮食计划

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选