Dr. Zhang’s research focuses on chronic disease epidemiology and the role of nutrition in cancer prevention and control. She pioneered studies that identified a high prevalence of obesity in childhood cancer survivors and a sensitive window for unhealthy weight gain. She is also evaluating the association between nutritional intake and survival outcomes in more than 7,000 women diagnosed with breast cancer, and identifying cost-effective strategies to provide nutritional support to the growing population of cancer survivors. She teaches epidemiologic methods, applied data analysis skills, and nutritional epidemiology at the Friedman School of Nutrition Science and Policy, Tufts University.