Objective To understand the dietary micronutrient intake status and its seasonal variation among residents in Yangpu District, and provide a scientific basis for local nutritional intervention.
Methods Nutritional questionnaires were administed as face-to-face interveiws in spring and autum of 2012 and summer and winter of 2013 by trained investigators. The micronutrient intake per person day was calculated based on 3-day 24-hour dietary recall and weight of cooking oil, salt, aginomoto, and other condiments.
Results The intake differences of vitamin A, carotene, thiamine, riboflavin, niacin, ascorbic acid, Na, Mn, Zn, and Se were statistically significant (Ps < 0.05) in four seasons among residents in Yangpu District. The proportions of intake below estimated average requirement (EAR) of vitamin A, thiamine, riboflavin, niacin, ascorbic acid, Ca, Mg, Fe, Zn, Cu, P, and Se were 50.9%, 69.9%, 53.5%, 14.8%, 38.7%, 48.2%, 34.5%, 0.4%, 31.5%, 1.1%, 3.0%, and 26.5%, respectively.
Conclusion The residents' intake of micronutrients are different in four seasons in the selected district, and focus should be made on the deficiencies in vitamin A, thiamine, riboflavin, ascorbic acid, Ca, Mg, Zn, and Se.
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