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Volume 18
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10.3390/ijerph18031306
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Article

Do Dietary Supplements Improve Perceived Health Well-Being? Evidence from Korea

by
Donghoon Kim
1,
Inbae Ji
1,*,
John N. Ng’ombe
2,
Kwideok Han
3 and
Jeffrey Vitale
4
1
Department of Food Industrial Management, Dongguk University, 30 Pildong-ro 1-gil Jung-gu, Seoul 04620, Korea
2
Department of Agricultural Economics and Extension, University of Zambia, Lusaka 10101, Zambia
3
Department of Institutional Research and Analytics, Oklahoma State University, 203 PIO Building, Stillwater, OK 74078, USA
4
Department of Agricultural Economics, Oklahoma State University, 418 Ag Hall, Stillwater, OK 74078, USA
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2021, 18(3), 1306; https://doi.org/10.3390/ijerph18031306
Submission received: 30 December 2020 / Revised: 19 January 2021 / Accepted: 26 January 2021 / Published: 1 February 2021
(This article belongs to the Section Health Behavior, Chronic Disease and Health Promotion)
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Abstract

This study analyzes the self-reported intake of dietary supplements (DS) and their effects on perceived health well-being from a survey with 1210 adult respondents in Korea. To account for selectivity bias from observable confounders, we use a propensity score matching (PSM) model. Our findings show that demographics, health concerns, family history of disease, frequency of hospital visits, and regular exercise are positively associated with intake of DS among consumers. Results from PSM show that the intake of DS leads to significant improvements in perceived health well-being among DS takers relative to DS non-takers regardless of gender, urban residence, having self-reported diseases or not. The paper concludes with implications for policies that promote intake of DS in Korea.
Keywords: average intake effects; dietary supplements; health well-being; propensity score matching average intake effects; dietary supplements; health well-being; propensity score matching

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MDPI and ACS Style

Kim, D.; Ji, I.; Ng’ombe, J.N.; Han, K.; Vitale, J. Do Dietary Supplements Improve Perceived Health Well-Being? Evidence from Korea. Int. J. Environ. Res. Public Health 2021, 18, 1306. https://doi.org/10.3390/ijerph18031306

AMA Style

Kim D, Ji I, Ng’ombe JN, Han K, Vitale J. Do Dietary Supplements Improve Perceived Health Well-Being? Evidence from Korea. International Journal of Environmental Research and Public Health. 2021; 18(3):1306. https://doi.org/10.3390/ijerph18031306

Chicago/Turabian Style

Kim, Donghoon, Inbae Ji, John N. Ng’ombe, Kwideok Han, and Jeffrey Vitale. 2021. "Do Dietary Supplements Improve Perceived Health Well-Being? Evidence from Korea" International Journal of Environmental Research and Public Health 18, no. 3: 1306. https://doi.org/10.3390/ijerph18031306

APA Style

Kim, D., Ji, I., Ng’ombe, J. N., Han, K., & Vitale, J. (2021). Do Dietary Supplements Improve Perceived Health Well-Being? Evidence from Korea. International Journal of Environmental Research and Public Health, 18(3), 1306. https://doi.org/10.3390/ijerph18031306

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