A registered and licensed dietician can assist you with managing diabetes, high blood pressure and other chronic diseases. They can work with you to create an eating plan that has the nutrients needed to manage your condition. If you have digestive problems, they will work with you and your doctor to fine-tune your diet. You will be able to make choices that do not aggravate your condition. Registered dietitians also counsel individuals with eating disorders such as anorexia and bulimia. If you as active in sports and want to set goals to achieve results, they can assist in improving your diet and energy level. Also, a registered dietitian can assist with healthy weight loss or gain.