Crohn’s disease or ulcerative colitis, collectively known as inflammatory bowel disease (IBD), has become increasingly prevalent in recent years, and is predominantly male! Due to the presence of varying degrees of diarrhea and abdominal pain, patients are headaches about how to eat, want to eat and do not dare to eat, want to eat do not know what to eat. Let’s talk about it below. First, nutritional problems (know your enemy) protein energy malnutrition —- direct performance is wasting; vitamins – folic acid B12, vitamin D, etc.; minerals – calcium, zinc, etc. Second, nutritional therapy – assessment before intervention (sharpening the knife) Transoral (at home/hospitalization); enteral (in case of complications); parenteral (hospitalization) Third, food (know what it is) Foods rich in pectin and oligosaccharides: fruits (apples, citrus, etc.), oligosaccharides (oats, onions, asparagus), produce short-chain fatty acids in the intestine, reduce inflammation and help intestinal mucosa repair; glutamine: powder (food) or capsule (drug), promote intestinal mucosa repair and improve intestinal immune function; n-3 unsaturated fatty acids: deep-sea fish or fish oil Reduce intestinal inflammation; lactose, sucrose: can aggravate mucosal inflammation, so milk as well as sweets should be avoided; foods rich in vitamin A: egg yolk, animal liver, carrots, sweet potatoes, etc., to maintain normal growth and differentiation of epithelial cells; high-energy, high-protein foods: increase energy density and fight weight loss. Rice porridge + minced meat (meat loaf, protein powder, nutritional powder), various powders (yam powder, walnut powder, almond powder), etc., eggs, meat, fish and poultry. Avoid stimulating foods – frozen foods and spicy foods, which are prone to relapse. IV. Dietary arrangements – different strategies at different stages Acute phase – usually hospitalized, in severe cases need to fasting, when you can ensure the basic intake of energy through parenteral nutrition; when gradually recovering or when the disease is mild – liquid diet, small amount of meals, must add oral enteral nutrition supplements; recovery period – less residue semi-liquid (ravioli, rotten noodles, etc.); stable period – less residue soft food or normal food V. Points to note – -Avoid hard and rough foods, especially if there are ulcers; use the method of excluding foods: do not eat those that aggravate the symptoms, and eat those that do not; try to diversify foods, and partially replace them with enteral nutrition or medical foods for a period of time. Regular follow-up at the nutrition clinic.