美国人类健康服务部和美国农业部每五年对饮食指南进行一次修订。修订这个指南时,两个联邦部门聚集最顶尖的营养专家,组成一个咨询委员会,根据最新及可信度高的食品和营养研究结果,加上目前美国食品和营养摄取趋势、饮食结构和全民健康状况、个人健康行为模式,以及粮食供应和环境因素,重新修订出一个让民众容易遵循,以促 The U.S. Department of Human Health Services and the U.S. Department of Agriculture amend dietary guidelines every five years. In revising this guide, two federal departments brought together the top nutritionists to form an advisory committee that, based on the latest and credible food and nutrition research results, together with the current trends in food and nutrition intake in the United States, the diet structure and universal health Status, patterns of personal health behavior, and food supply and environmental factors, a revised version of one that is readily accessible to the public in order to promote