中国居民2002年膳食纤维的摄入现状

目的:分析我国居民2002年膳食纤维的摄入量及其食物来源。方法:数据来源于2002年中国居民营养与健康状况调查,本次分析为2岁及以上人群68952例,(男33546,女35406)。结果:我国居民总膳食纤维摄入量占AI的61.9%,每标准人日总/不可溶性膳食纤维(TDF/IDF)摄入量为18.7g/12g,城市17.4g/11.1g,农村19.1g/12.4g,与1992年比,IDF摄入量有所下降。在各个年龄组均呈现农村男性>农村女性>城市男性>城市女性,成年前随年龄逐渐上升,而中老年逐渐下降的趋势。IDF主要来源于蔬菜、面、米、杂粮,分别占31.6%、21.2%、16.1%、5.8%。结论:应该在人群中大力开展膳食营养教育,强调摄入蔬菜、谷类食物及水果的重要性,提高我国居民膳食纤维摄入的整体水平,从而在一定程度上预防和控制慢性疾病的发生。

THE STATUS OF DIETARY FIBER INTAKE OF CHINESE PEOPLE IN 2002

Objective: To analyze the status of dietary fiber intake and its food sources of Chinese people in 2002. Method: Data were presented for 33 546 men and 35 406 women aged more than 2 years old from National Nutrition and Health Survey , 2002. Results: The total dietary fiber intake accounted for 61.9% of the AI. The total and insoluble dietary fiber intake(TDF/IDF)per reference man per day were 18.7g and 12g respectively, and the figures in urban area were 17.4g and 11.1g, which were lower than 19.1g and 12.4g in rural area. The IDF intake was decreased as compared to 1992. The TDF/IDF intake ranked in order as rural male, rural female, urban male and urban female in all age groups. The intake had an ascending trend before adulthood, but declined after middle age. The major food sources of IDF were vegetables, wheat flour, rice and other grains, which accounted for 31.6%, 21.2%.16.1% and 5.8% respectively. Conclusion: Strengthening public education and advocating more vegetables, grains and fruits in diet are needed to enhance the dietary fiber intake to prevent and control the chronic diseases.