Use and Attitudes Concerning Total Imported Dietary Supplements and Its Factors in Chinese Urban Adults: A Cross-Sectional Study

摘要

This online cross-sectional survey investigated the use of dietary supplements (DSs) in Chinese urban adults. A 50-item survey on DSs was administered to 8012 participants from March to May 2019. The usage rate of total DSs was 71.3 and 57.7 on imported DSs (IDSs). Approximately 53.7 of participants bought IDSs, and the most frequently used was vitamins (83.2). The largest source of imported IDSs was the United States (55.8). Multivariate analysis showed that more developed areas, women, those with a higher educational background, those with higher incomes, and those categorized as workers and staff members and retirees were more likely to have taken DSs.