Diarrhea is not recommended to drink milk. Milk is rich in protein, fat food, diarrhea during the patient’s gastrointestinal tract digestion and absorption function is poor, resulting in protein, fat is difficult to digest and absorb, the consumption of milk will increase the burden on the gastrointestinal tract, may lead to diarrhea aggravated. Milk is also rich in lactose, especially for lactose intolerant people, due to the lack of lactase enzyme in the body, drinking milk is more likely to cause diarrhea. Milk is rich in calcium, phosphorus, iron and other minerals, milk is the body’s best source of calcium, and the ratio of calcium and phosphorus is very appropriate, conducive to calcium absorption. Milk is also the best source of protein, rich in nutrients, and can be consumed in moderation without diarrhea. When you have diarrhea, you should eat light fluids, such as rice soup, and after the number of diarrhea decreases, you can eat fine, soft, semi-liquid foods, such as rice porridge, soft noodles, egg custard, and so on. Patients with diarrhea should go to the hospital and be treated under doctor’s supervision.