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Dietary supplement use among cancer survivors and the general population: a nation-wide cross-sectional study.
BMC Cancer. 2017 12 28; 17(1):891.BC

Abstract

BACKGROUND

Use of dietary supplements among cancer survivors is common and controversial, but information on the amount of nutrients from supplements among cancer survivors is limited. We examined the amount of nutrients and their contribution to total nutrient intake from supplements and compared these data between cancer survivors and cancer-free individuals. We also identified factors associated with supplement use among cancer survivors.

METHODS

We identified 400 cancer survivors and 10,387 cancer-free individuals, aged ≥ 19 years, from the fifth Korea National Health and Nutrition Examination Survey (KNHANES) V-1, 2 (2010, 2011). We calculated the amount of nutrients consumed from foods and supplements, the percent contributions of supplement nutrients to total nutrient intakes and cancer survivors' nutrient intakes relative to the Estimated Average Requirements (EARs) and the Tolerable Upper Intake Levels (ULs). We examined factors associated with supplement use among cancer survivors.

RESULTS

We found that 33.3% of cancer survivors and 22.1% of cancer-free individuals reported the use of dietary supplements. Compared to cancer-free individuals, cancer survivors had higher intakes of riboflavin, folate, and iron from foods (p < 0.05 for each), and higher intakes of calcium (p = 0.05) and vitamin C (p = 0.01) from foods and supplements. The similar pattern was observed for the percent contributions to total nutrient intake. Cancer survivors had higher proportion of participants below EARs than cancer-free individuals for thiamin and niacin (p < 0.05 for each). The proportions of cancer survivors below the EARs were 61.2% for calcium, 49.1% for riboflavin, and 43.5% for folate and the proportions of cancer survivors above the ULs were 3.3% for iron, and 2.3% for vitamin A. For female cancer survivors, education above an elementary school level, moderate physical activity, low vegetable intake, and high circulating vitamin D levels were associated with supplement use. For male cancer survivors, living in an urban area, no consumption of alcohol, and lower energy intake, were associated with supplement use.

CONCLUSIONS

Korean cancer survivors have higher rate of dietary supplement use and higher contribution from supplements to total nutrient intake than cancer-free individuals. Demographic and lifestyle factors were associated with supplement use among cancer survivors.

Authors+Show Affiliations

Department of Food and Nutrition, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, Republic of Korea.Department of Food and Nutrition, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, Republic of Korea.Department of Food and Nutrition, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, Republic of Korea.Department of Food and Nutrition, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, Republic of Korea.Department of Food and Nutrition, Chungbuk National University, Chungdae-ro 1, Seowon-Gu, Cheongju, Chungbuk, 28644, Republic of Korea.Major of Food and Nutrition, School of Human Ecology, The Catholic University of Korea, 43 Jibong-ro, Wonmi-gu, Bucheon-si, Gyeonggi-do, 14662, Republic of Korea.Department of Food and Nutrition, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, Republic of Korea. jungelee@snu.ac.kr.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

29282002

Citation

Song, Sihan, et al. "Dietary Supplement Use Among Cancer Survivors and the General Population: a Nation-wide Cross-sectional Study." BMC Cancer, vol. 17, no. 1, 2017, p. 891.
Song S, Youn J, Lee YJ, et al. Dietary supplement use among cancer survivors and the general population: a nation-wide cross-sectional study. BMC Cancer. 2017;17(1):891.
Song, S., Youn, J., Lee, Y. J., Kang, M., Hyun, T., Song, Y., & Lee, J. E. (2017). Dietary supplement use among cancer survivors and the general population: a nation-wide cross-sectional study. BMC Cancer, 17(1), 891. https://doi.org/10.1186/s12885-017-3885-1
Song S, et al. Dietary Supplement Use Among Cancer Survivors and the General Population: a Nation-wide Cross-sectional Study. BMC Cancer. 2017 12 28;17(1):891. PubMed PMID: 29282002.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Dietary supplement use among cancer survivors and the general population: a nation-wide cross-sectional study. AU - Song,Sihan, AU - Youn,Jiyoung, AU - Lee,Yun Jung, AU - Kang,Minji, AU - Hyun,Taisun, AU - Song,YoonJu, AU - Lee,Jung Eun, Y1 - 2017/12/28/ PY - 2016/07/01/received PY - 2017/12/08/accepted PY - 2017/12/29/entrez PY - 2017/12/29/pubmed PY - 2018/8/15/medline KW - Cancer survivors KW - Dietary supplement use KW - Korea National Health and Nutrition Examination Survey SP - 891 EP - 891 JF - BMC cancer JO - BMC Cancer VL - 17 IS - 1 N2 - BACKGROUND: Use of dietary supplements among cancer survivors is common and controversial, but information on the amount of nutrients from supplements among cancer survivors is limited. We examined the amount of nutrients and their contribution to total nutrient intake from supplements and compared these data between cancer survivors and cancer-free individuals. We also identified factors associated with supplement use among cancer survivors. METHODS: We identified 400 cancer survivors and 10,387 cancer-free individuals, aged ≥ 19 years, from the fifth Korea National Health and Nutrition Examination Survey (KNHANES) V-1, 2 (2010, 2011). We calculated the amount of nutrients consumed from foods and supplements, the percent contributions of supplement nutrients to total nutrient intakes and cancer survivors' nutrient intakes relative to the Estimated Average Requirements (EARs) and the Tolerable Upper Intake Levels (ULs). We examined factors associated with supplement use among cancer survivors. RESULTS: We found that 33.3% of cancer survivors and 22.1% of cancer-free individuals reported the use of dietary supplements. Compared to cancer-free individuals, cancer survivors had higher intakes of riboflavin, folate, and iron from foods (p < 0.05 for each), and higher intakes of calcium (p = 0.05) and vitamin C (p = 0.01) from foods and supplements. The similar pattern was observed for the percent contributions to total nutrient intake. Cancer survivors had higher proportion of participants below EARs than cancer-free individuals for thiamin and niacin (p < 0.05 for each). The proportions of cancer survivors below the EARs were 61.2% for calcium, 49.1% for riboflavin, and 43.5% for folate and the proportions of cancer survivors above the ULs were 3.3% for iron, and 2.3% for vitamin A. For female cancer survivors, education above an elementary school level, moderate physical activity, low vegetable intake, and high circulating vitamin D levels were associated with supplement use. For male cancer survivors, living in an urban area, no consumption of alcohol, and lower energy intake, were associated with supplement use. CONCLUSIONS: Korean cancer survivors have higher rate of dietary supplement use and higher contribution from supplements to total nutrient intake than cancer-free individuals. Demographic and lifestyle factors were associated with supplement use among cancer survivors. SN - 1471-2407 UR - https://www.unboundmedicine.com/medline/citation/29282002/Dietary_supplement_use_among_cancer_survivors_and_the_general_population:_a_nation_wide_cross_sectional_study_ L2 - https://bmccancer.biomedcentral.com/articles/10.1186/s12885-017-3885-1 DB - PRIME DP - Unbound Medicine ER -