Dieting simply means abstaining from eating, which also refers to eating according to a limited recipe. Clinically, certain diseases can be treated or assisted in the treatment of the disease by controlling the diet and changing the lifestyle. Diet control means dieting, not only need to control the type of food, the total amount of food also need to be limited. If simple obesity is present, it can be treated by dieting and exercise for improvement. The dieting program can be a high protein diet, including the consumption of foods such as chicken breast, beef, fish, and lean pork, while limiting the intake of fat and carbohydrates. It is also important to limit total daily energy intake to ensure a certain negative balance between energy intake and expenditure. Although dieting can treat or assist in the treatment of some diseases, it should not be overdone and it is recommended to seek medical advice and regulate the diet under the guidance of a medical professional.