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目的:探讨1991～1997年中国成人膳食脂肪摄八量、脂肪食物来源及其组成变化趋势。方法:利用“中国居民健康与营养调查”的资料,选取1991、1993和1997年调查中18～65岁健康成人作为研究对象,以成人膳食脂肪摄入量、脂肪供能比、脂肪食物来源和脂肪酸组成作为评价居民脂肪摄入状况的指标,以 SAS 软件对数据库资料进行统计分析。结果及结论:1991～1997年城市、郊区和县城三类地区成人脂肪摄入量增加,脂肪提供能量在总能量中所占比例提高,城市已达到34.79%。胆固醇摄八量也呈增加趋势,城市居民胆固醇平均摄入水平已达到361.55mg/d。植物油脂和动物性食物消费量增加成为居民脂肪摄入提高的主要原因。饱和脂肪酸、单不饱和脂肪酸和多不饱和脂肪酸在总能量中所占比例均呈提高趋势.其中以单不饱和脂肪酸增长最快。农村居民膳食脂肪摄入状况稳定在较低的摄入水平。
OBJECTIVE: To investigate the changes of dietary fat intake, fat source and composition of Chinese adults from 1991 to 1997. Methods: Using the data of “Health and Nutrition Survey of Chinese Residents”, the data of healthy adults aged 18-65 years from 1991, 1993 and 1997 were selected as the research object. The data of adult dietary fat intake, fat to energy ratio, Sources and fatty acid composition as indicators to assess the status of fat intake, using SAS software for statistical analysis of database data. RESULTS AND CONCLUSION: From 1991 to 1997, adult fat intake in urban, suburban and county areas increased. The proportion of fat supplied energy in total energy increased, reaching 34.79% in the city. Cholesterol also increased the amount of eight shots, the average cholesterol intake of urban residents has reached 361.55mg / d. Increased consumption of vegetable oils and animal foods has become a major cause of increased fat intake. The proportion of saturated fatty acids, monounsaturated fatty acids and polyunsaturated fatty acids in total energy showed an increasing tendency, of which monounsaturated fatty acids increased the fastest. Rural residents’ dietary fat intake stabilized at a lower level of intake.