Dr. Chompoonut Topothai completed her medical degree at the Faculty of Medicine, Siriraj Hospital, Mahidol University in 2009, and earned a Master of Public Health from the University of Leeds, United Kingdom, in 2014. She recently completed her Ph.D. at the Saw Swee Hock School of Public Health, National University of Singapore.

Since 2014, she has worked as a medical officer at the Department of Health, Ministry of Public Health, Thailand, and as a researcher at the International Health Policy Program. Her work has focused on advocating for national legislation to control the marketing of commercial milk formula, implementing breastfeeding promotion and support programs in healthcare settings, leading national maternal and child health programs, and contributing to global health platforms on maternal and child health. She now serves as Head of the Maternal Health Group,

Bureau of Health Promotion, Department of Health, Ministry of Public Health, Thailand, where she is responsible for formulating and implementing national maternal health policy, including breastfeeding promotion.