Dr. Tobias was appointed the Academic Editor for the American Journal of Clinical Nutrition in 2019. Her research focuses on the role of diet and lifestyle for obesity and its major chronic diseases, including gestational diabetes and type 2 diabetes, and has been published in leading peer-reviewed journals including the New England Journal of Medicine and Journal of the American Medical Association. She contributes to the development and analyses of healthful dietary patterns, metabolomics, and nutrition epidemiologic methods, and is co-Instructor of Nutritional Epidemiology at the Harvard TH Chan School of Public Health.