※1 U.S. Department of Agriculture, Agricultural Research Service. FoodData Central, 2019. fdc.nal.usda.gov. ※2 Herselman MF, et al. The effects of walnuts and academic stress on mental health, general well-being and the gut microbiota in a sample of university students: A randomised clinical trial. Nutrients. 2022;14:4776.https://www.californiakurumi.jp/paper/20230324 ※3 Pinar-Marti A, et al. Effect of walnut consumption on neuropsychological development in healthy adolescents: A multi-school randomized controlled trial. eClinicalMedicine. 2023;59:101954. https://www.californiakurumi.jp/paper/20230906 ※4 日本人の食事摂取基準(2020年版) https://www.mhlw.go.jp/content/10904750/000586553.pdf