Objective: To analysis the status of dietary protein intake of urban residents in Zhejiang Province.
Methods: Dietary nutrients intake was estimated using the method of 3 day 24-hour dietary recall and food weighted record, 3452 residents who above 2-year-older were recruited in 2009 - 2011, and calculating the daily intake of food, protein and amino acid, analyzing the protein intake combined with demographic information.
Results: 3240 residents were included in this analysis, the residents with protein intake lower than 80% of the RNI accounted for 34.3%. The average protein intake in per day was 71.1 g for per reference man, the supply of high-quality protein accounted for 51.7% of the protein. All ratio coefficients of essential amino acids were close to 1 and the amino acid score was equal to 85. The proportion that protein intake was equal or greater than RNA enhanced as the degree of education improved( OR = 0.822, P < 0.001).
Conclusion: Dietary protein intake of urban residents in Zhejiang Province was among reasonable ranges, the proportion of high-quality protein was appropriate, and the amino acid pattern was similar to the pattern recommended by WHO/FAO, the nutrition value of dietary proteins was high. The protein intake enhanced as the degree of education improved. Urban residents of Zhejiang Province had the risk of inadequate dietary protein, older men and women of childbearing age were the most prominent.