E. Morita, S. Ando, Y. Fukuyama, Y. Kikuchi, S. Kumabe, and Y. Yamashina, “Habitual daily walking of at least 8,000 steps increases fecal acetate but not muscle mass in healthy young adults: A 3-month intervention study”, Health Prom Phys Act, vol. 31, no. 2, pp. 7–13, Nov. 2025.