1. 1) Cabinet Office, The Consumer Commission, “Shouhisha no [Kenkou Shokuhin] no Riyou ni kansuru Jittaichousa (anketo chousa)”: 〈https://www.cao.go.jp/consumer/doc/20120605_chousa_houkoku.pdf〉, cited 12 May, 2019.
2. 2) Bureau of Social Welfare and Public Health, Tokyo Metropolitan Government, “Tomin o Taishou to shita [Kenkou Shokuhin] no Sesshu ni kakaru Chousakekka houkokusho”: 〈http://www.tokyo-eiken.go.jp/files/top/27_kenshoku_houkokusho.pdf〉, cited 12 May, 2019.
3. 3) Consumer Affairs Agency, “[Kinousei Hyouji Shokuhin] tte Nani?”: 〈https://www.caa.go.jp/policies/policy/food_labeling/about_foods_with_function_claims/pdf/150810_1.pdf〉, cited 12 May, 2019.
4. 4) Chiba T., Sato Y., Kobayashi E., Umegaki K., J. Food Hyg. Soc. Jpn., 58, 96-106 (2017).
5. 5) Shimasaki H., J. Lipid Nutr., 25, 43-52 (2016).