Dieticians provide evidence-based information and guidance about the impacts of food and nutrition on the health and wellbeing of individuals. It is difficult to stay knowledgeable on the latest diet trends. If you are trying to lose weight or develop healthy eating habits, a dietician can provide guidance on how to safely and effectively reach your goals. Dieticians develop meals plans, educate on portion control and are qualified to prescribe special diets for the treatment or prevention of diseases, such as heart disease and diabetes.