After finishing her dietetic internship at Simmons College, she completed the prestigious LEAH (Leadership Education in Adolescent Health) Fellowship in the adolescent department at Boston Children's Hospital. Currently she is a clinical dietitian in the adolescent clinic there, specializing in the nutritional care of teenagers with eating disorders, obesity, and polycystic ovarian syndrome (PCOS). Katrina also writes guides and blogs for the Center for Young Women's Health and runs a small private practice in Brookline, Mass.