Registered dietitians help individuals with a variety of concerns and conditions, including: - - Basic nutrition - - Diabetes - - Food allergies, including gluten - - Heart disease - - High blood pressure - - High cholesterol - - Irritable bowel syndrome - - Picky eaters - - Sports nutrition - - Weight loss Dietitians help create a personal plan to meet an individual's goals, answer questions, provide education, as well as advice on what to look for in the grocery store.