Japanese newspaper advertisements for dietary supplements before and after COVID-19: a content analysis
Takahiro Kiuchi,
Tsuyoshi Okuhara,
Rie Yokota,
Ritsuko Shirabe,
Reina Iye,
Hiroko Okada,
Tsuyoshi Chiba,
Rie Akamatsu
Affiliations
Takahiro Kiuchi
Department of Health Communication, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
Tsuyoshi Okuhara
Department of Health Communication, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
Rie Yokota
Department of Health Communication, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
Ritsuko Shirabe
Department of Health Communication, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
Reina Iye
Department of Health Communication, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
Hiroko Okada
Department of Health Communication, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
Tsuyoshi Chiba
Department of Food Function and Labeling, National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Shinjuku-ku, Tokyo, Japan
Rie Akamatsu
Natural Science Division, Ochanomizu University, Bunkyo-ku, Tokyo, Japan
