After metabolic weight loss surgery, patients’ eating habits will change. Therefore, patients should pay attention to dietary problems after surgery, as follows: 1, the nature of the food: within 3 weeks after surgery for the liquid diet, such as water, rice soup, milk, soybean milk and other food without slag. 3 weeks or so can be slowly transitioned to a semi-liquid diet, such as thinner rice, rotting a little bit of noodles, egg custard and other food with a little bit of slag. The semi-liquid diet needs to be maintained for 1-2 months, and after 2 months, according to their own situation, they can slowly transition to soft food, etc.; 2, patients also need to pay attention to the number of times of eating, should be maintained at 3 times a day, to avoid vomiting after eating too much.