肥胖是高血压、糖尿病、血脂异常等多种疾病发生的主要危险因素,被世界卫生组织认定为影响健康的第五大危险因素[1-2]。改革开放以来,随着社会经济的快速发展,一方面为消除营养缺乏改善居民健康提供了经济、物质基础,另一方面国人健康文化素养相对滞后,也导致了膳食结构、生活方式和疾病谱的变化。 Obesity is a major risk factor for many diseases such as hypertension, diabetes, dyslipidemia and is the fifth most dangerous factor that has been identified by the World Health Organization as affecting health [1-2]. Since the reform and opening up, with the rapid social and economic development, on the one hand, it has provided the economic and material foundation for eliminating the nutritional deficiencies and improving the residents’ health. On the other hand, the relative lack of health and literacy of the Chinese people has also led to the changes of the dietary structure, life style and disease spectrum Variety.