Dietary therapies are designed and advised for general nutritional and medical purposes. A balanced diet that includes foods necessary for optimum health is encouraged by diet therapy. Eating a range of foods that are appropriate for each individual and drinking the recommended amount of water can help one maintain the best possible health. Eating the correct foods is essential for maintaining the health of individuals, groups with specific medical and dietary needs, and entire populations experiencing malnutrition. Every person is given a special diet that is suited to them. Individuals who have dietary sensitivity issues or other health issues must adhere to strict guidelines and watch what they eat.