Defu Ma is a master's tutor in the Department of Social Medicine and Health Education, School of Public Health, Peking University. He is mainly engaged in research on health management, maternal and infant nutrition, and phytochemical chronic disease prevention. Currently, he is an expert member of the General Medicine and Health Management Branch, a member of the Cancer Nutrition Professional Committee of the Chinese Anti-Cancer Association, an editorial member of the "Chinese Journal of Evidence-Based Medicine", and an editorial member of the "Chinese Journal of Health Management". He obtained a bachelor's in Prevention from Shandong University School of Medicine from 1999/9–2004/6, a master's in Nutrition from Peking University School of Medicine from 2004/9–2007/6, and a PhD in Pathology from Yamanashi University, Japan, from 2007/6–2010/3.