中国有句古话：“民以食为天”，其实就是“民以吃为天”，但吃不同天也不同。吃不同食物健康就不同，因此，合理膳食对健康至关重要。“合理膳食”，说起来复杂，其实也很简单，结合中国营养学会的观点和美国“健康食物指南金字塔”以及中国国情，我们可以把它概括成两句话，叫膳食中 There is an old saying in China: “People eat food for the day ”, in fact, “people eat for the day ”, but eat different days are different. Eating different food health is different, therefore, a reasonable diet is essential for health. “Reasonable diet ”, to say complicated, in fact, is very simple, combined with the views of the Chinese Nutrition Society and the United States “Healthy Food Guide Pyramid ” and China’s national conditions, we can sum it into two sentences, called the diet