{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,8]],"date-time":"2025-11-08T22:48:11Z","timestamp":1762642091981,"version":"build-2065373602"},"reference-count":29,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2018,3,7]],"date-time":"2018-03-07T00:00:00Z","timestamp":1520380800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nutrients"],"abstract":"<jats:p>Vitamin C is essential for human health. It is important to estimate the dietary vitamin C intake in the Chinese population to examine the effects of the nutritional transition occurred in recent decades. The present study aimed to estimate the dietary vitamin C intake in Chinese adults by using cross-sectional data from the 2015 China Nutritional Transition Cohort Study and selecting those aged 18\u201365 years with complete records of sociodemographic characteristics and dietary measurements (n = 11,357). Wilcoxon rank-sum test, Kruskal-Wallis analysis, Chi-squared test, and multiple logistic regression were employed to analyze the daily dietary vitamin C intake on the basis of three-day 24 h dietary recalls and food sources in relation to demographic factors, to evaluate vitamin C intake status using the estimated average requirement cut-off point, and to explore underlying influencing factors. The mean (SD (standard deviation)) and median (interquartile range) levels of the dietary vitamin C intake in adults were 78.1 (54.6) and 65.4 (61.4) mg\/day, respectively. Light vegetables, dark vegetables, fruits, and tubers were the top four food sources, contributing a combined 97.3% of total daily dietary vitamin C intake in the study population. The prevalence of risk of insufficient dietary vitamin C intake was 65.1%. Both the distribution of vitamin C intake and the prevalence of risk of insufficient dietary vitamin C intake differed by several demographic factors. Educational level, residence area, geographic location, vegetable consumption, and total energy intake were independent determinants of the risk of insufficient dietary vitamin C intake. In conclusion, dietary vitamin C intake is inadequate in Chinese adult population, and an increase in vitamin C intake should be recommended especially to the population at risk for vitamin C insufficiency.<\/jats:p>","DOI":"10.3390\/nu10030320","type":"journal-article","created":{"date-parts":[[2018,3,7]],"date-time":"2018-03-07T12:55:23Z","timestamp":1520427323000},"page":"320","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":26,"title":["Food Sources and Potential Determinants of Dietary Vitamin C Intake in Chinese Adults: A Cross-Sectional Study"],"prefix":"10.3390","volume":"10","author":[{"given":"Xiaofang","family":"Jia","sequence":"first","affiliation":[{"name":"National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhihong","family":"Wang","sequence":"additional","affiliation":[{"name":"National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bing","family":"Zhang","sequence":"additional","affiliation":[{"name":"National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chang","family":"Su","sequence":"additional","affiliation":[{"name":"National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wenwen","family":"Du","sequence":"additional","affiliation":[{"name":"National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3266-8999","authenticated-orcid":false,"given":"Jiguo","family":"Zhang","sequence":"additional","affiliation":[{"name":"National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ji","family":"Zhang","sequence":"additional","affiliation":[{"name":"National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hongru","family":"Jiang","sequence":"additional","affiliation":[{"name":"National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Feifei","family":"Huang","sequence":"additional","affiliation":[{"name":"National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5179-9914","authenticated-orcid":false,"given":"Yifei","family":"Ouyang","sequence":"additional","affiliation":[{"name":"National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yun","family":"Wang","sequence":"additional","affiliation":[{"name":"National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Li","family":"Li","sequence":"additional","affiliation":[{"name":"National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Huijun","family":"Wang","sequence":"additional","affiliation":[{"name":"National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2018,3,7]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Martin-Calvo, N., and Martinez-Gonzalez, M.A. (2017). 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