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This study aimed to develop a dietary supplemental database and to evaluate the contributions of dietary supplemental use to total nutrient intakes in a Korean adult population of KNHANES V (2010‐2012). Information on dietary supplemental use was obtained from a total of 3,850 men and women aged 19 or more years through face‐to‐face interview. We developed a dietary supplemental database and classified into either pharmaceutical products or functional food products based on product name and manufacturing company. Among all frequencies reported on dietary supplements, 23.7% of frequencies were retrieved from pharmaceutical products and 76.3% from functional food products. The most commonly used dietary supplements were vitamin or mineral supplements (57.2%). Among non‐vitamin/mineral supplements, ginseng and omega 3 were most commonly used in Korean adults. When we calculated the contributions of dietary supplemental use to total nutrient intakes, we found that those who used vitamin or mineral supplements had 0.5 to 9 times higher vitamin or mineral intakes compared to those from foods only. In conclusion, because of the common uses of dietary supplements in Korean, it is needed to evaluate adequate intake or potentially excessive intake of nutrients from supplements and its effects on health outcomes. Grant Funding Source: Supported by KCDC(2013E3501300)

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