Dietary vitamin a intake among Chinese adults: findings from CNTCS2015

作者：Du Wenwen; Wang Huijun; Wang Zhihong; Zhang Jiguo; Su Chang; Jia Xiaofang; Zhang Ji; Jiang Hongru; Huang Feifei; Ouyang Yifei; Wang Yun; Li Li; Zhang Bing^*

来源：Nutrition Journal, 2018, 17(1): 60.

DOI：10.1186/s12937-018-0369-3

• Vitamin A
• Retinol
• Carotenes
• China

Background: Vitamin A plays an important role in human functions, which mainly come from foods. This study aims to examine dietary vitamin A intake and major food sources of Chinese adults.
Methods: We analyzed the cross-sectional data from 12,246 adult aged 18 to 64 years old in 2015 China Nutritional Transition Cohort Study. Three consecutive 24-h dietary recalls combined with household weighing method were used to assess dietary vitamin A intake.
Results: The average dietary vitamin A intakes were 480.9 mu g retinol equivalents (RE) or 307.2 mu g retinol activity equivalents (RAE). The carotenes and retinol intake of subjects were 2084.7 mu g/day and 133.5 mu g/day, respectively. Approximately 87% of adults consumed less vitamin A than the Chinese Estimated Average Requirement (EAR), and only 6% of adults consumed more than Chinese Recommended Nutrient Intake (RNI). Chinese adults derived vitamin A mainly from plant source foods, which is supplied as carotenes (67.4% RE or 56.4% RAE). Dark-and light-vegetables and fruits were major contributors of carotenes (accounted for 84.2%). The most import food sources of retinol were egg, meats and meat products, poultry, fish and milk, representing 94.7% of retinol intake. The major four contributors of total vitamin A (as both RE and RAE) were dark vegetables, egg, light vegetables, and meats and meat products. In conclusion, dietary vitamin A remains a problem for Chinese adults.
Conclusions: Public health actions are needed to increase vitamin A intake in China.

• 出版日期2018-6-11
• 单位中国疾病预防控制中心