[Trend on dietary structure among residents in Sichuan Province from 2002 to 2012]

Abstract

Objective: To understand the food intake and analyze the dietary pattern and its change among urban and rural residents in Sichuan from 2002 to 2012.

Methods: Based on the results data from on the " 2002 National Nutrition and Health Surveillance Survey" and " 2010-2012 National Nutrition and Health Surveillancey", data of average food intake per reference man per day in Sichuan was compared. The 3-consecutive day-24-hour dietary recall was used to collect information on food intake, but the condiment intake was collected by weighting method.

Results: From 2002 to 2012, the average food intake of soybeans and nuts, vegetables, eggs, meats and oil showed a upward trend. During 2002-2012, the intake of soybeans and nuts increased during 2002-2012 from7. 00 g to 9. 46 g, vegetables intake increased from 259. 90 g to 265. 34 g, eggs intake increased from 15. 30 g to 17. 26 g, but soybeans and nuts, vegetables, eggs were still insufficient. The intake of meats and edible oil were still much higher than recommended, the intake of meats increased from 91. 60 g to 137. 21 g during 2002-2012, the intake of edible oil increased from 41. 20 g to 48. 34 g during ten years. The average food intake of cereals and potatoes, fruits, milk aquatic products and salt showed a downward trend. For example, the average intake of cereals and potatoes decreased during 2002-2012 from426. 60 g to 256. 26 g, fruits intake decreased from 37. 60 g to 16. 88 g, milk intake decreased from 37. 60 g to 30. 04 g, aquatic products intake decreased from 9. 10 g to 7. 45 g, salt intake decreased from 10. 00 g to 7. 84 g. But the average intake of salt was still high. The intake of fat also showed a upward trend that it increases during 2002-2012 from77. 20 g to 95. 87 g, and the proportion of the energy supplied by fat( 44. 87%) was too high.

Conclusion: The dietary status of urban and rural residents in Sichuan have gradually improved, but the dietary pattern is unbalanced. The residents' intakes of milk, fruits, soybeans and nuts, aquatic products are still at a low level and the intakes of meats, oil and fat are excessive. The proportion of the energy supplied by fat is too high.

Keywords: dietary pattern; nutrition and health survey; rational diet.