Thank you for visiting Natural Choice Nutrition and the office of Barb M. Mahlmeister registered dietitian, licensed nutritionist and Certified Functional Medicine Practitioner from the Institute of Functional Medicine. Barb was one of the first dietitians certified at the inaugural certification. She specializes in gastrointestinal disorders such as Celiac, Crohn's disease, irritable bowel syndrome, colitis, food allergies and sensitivities. She has extensive knowledge of autoimmune and inflammatory issues as well as diabetes, cardiovascular disease and weight loss. Barb works with pediatrics to seniors.