Investigation of Dietary Fatty Acids Intakes of Chinese People During Twenty Years

Based on the national dietary survey in 1982,1992 and 2002,the diversity and quantity of Chinese food intake was analyzed.The fatty acids were measured by GC-MS and used for further analysis.The results showed that the total fatty acid intake increased prominently.The SFA∶MUFA∶PUFA is changed from 1∶1.5∶1.4(1982) to 1∶1.4∶1.05(1992) and 1∶1.3∶1.1(2002).The SFA∶MUFA∶PUFA was kept in a reasonable range.The n-6/n-3 in 8.8∶1~9.56∶1 was not in a reasonable range.