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

Donghoon Kim, Inbae Ji, John N. Ng’ombe, Kwideok Han and Jeffrey Vitale
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Donghoon Kim: Department of Food Industrial Management, Dongguk University, 30 Pildong-ro 1-gil Jung-gu, Seoul 04620, Korea
Inbae Ji: Department of Food Industrial Management, Dongguk University, 30 Pildong-ro 1-gil Jung-gu, Seoul 04620, Korea
John N. Ng’ombe: Department of Agricultural Economics and Extension, University of Zambia, Lusaka 10101, Zambia
Kwideok Han: Department of Institutional Research and Analytics, Oklahoma State University, 203 PIO Building, Stillwater, OK 74078, USA
Jeffrey Vitale: Department of Agricultural Economics, Oklahoma State University, 418 Ag Hall, Stillwater, OK 74078, USA
Authors registered in the RePEc Author Service: John N. Ng'ombe

IJERPH, 2021, vol. 18, issue 3, 1-14

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 (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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