You can eat some fish in moderation after gastric surgery. After gastric surgery, there will be food digestion and absorption dysfunction, in the diet advocate light diet, advocate high protein, low fat food, small meals to increase the patient’s nutrition to promote the healing of the body. Fish as a high protein, low fat food, gastric surgery patients eat after the benefit of supplemental nutrition. It is important to note that after gastric surgery, try to eat steamed fish, such as steamed sea bass or steamed guppy, avoiding braised fish, so as not to add too much seasoning such as chili, ginger, garlic, etc. to stimulate the stomach and thus cause pain, vomiting and so on. It is recommended to maintain a light diet after gastric surgery, avoiding spicy and irritating foods that may affect the recovery of the stomach.