A supervised diet is a diet in which a healthcare professional provides help and guidance to the person following the diet; it is often based on the individual’s nutritional needs which are determined by running diagnostic tests such as bloodwork. The goal of a supervised diet is to help the person improve their health and achieve a healthier weight; this significantly reduces the risk of several chronic diseases, including diabetes, hypertension (high blood pressure), and heart disease. Some examples of supervised diets include medically supervised diets, which are designed to help people lose weight or reduce their risk of developing chronic conditions such as hypercholesterolemia (high cholesterol) or kidney disease, and lifestyle-supervised diets, which help people improve their health by changing their diet and exercise habits. Both types of supervised diets are often prescribed by doctors as a way to improve a person's health and reduce their risk of developing serious conditions, but also focus on instilling long-term behavioral changes to support sustainable results.