Kimberley A. Tessmer, R.D., L.D., has been working as a dietitian since 1992. She owns and operates Nutrition Focus, a consulting practice for weight management, menu development, and other nutrition-related subjects. Tessmer is the author of many books, including Tell Me What To Eat If I Have Celiac Disease, Tell Me What To Eat If I Have Inflammatory Bowel Disease, The No-Wheat Cookbook, Your Nutrition Solution To A Healthy Gut, and others.