Bentley is Ambassador for the Paul G. Rogers Society for Global Health Research and is a Fellow for the Society for Applied Anthropology. She has held a number of positions at the Division of Human Nutrition in the Department of International Health at The Johns Hopkins School of Hygiene and Public Health, where she was on faculty from 1985-1998. In the late 1980’s, Dr. Bentley was part of a team of researchers investigating whether child feeding practices change due to diarrhea in the Central Peruvian Highlands. She led a study to improve dietary iron intake in women and adolescent girls through community kitchens in Lima, Peru. Dr. Bentley is co-principal investigator of the Center for Excellence in Children’s Nutrition/Mead Johnson study – Dietary Patterns and Obesity Risk among Latino Infants and Toddlers in North Carolina. She is currently involved in a study in southwestern Honduras with the NGO Shoulder to Shoulder, which is assessing whether a nutritional supplement, PlumpyDose, improves the growth and development of infants and toddlers. In addition she was principal investigator of the NIH/Fogarty study UNC-Chapel Hill Framework Program in Global Health, which facilitated and supported research through a small grant program targeted to individuals with little prior experience in global health.