It is not suitable to drink milk, as follows:

1. People who are often exposed to lead: The lactose in milk can promote the absorption and accumulation of lead in the human body, which can easily cause lead poisoning. Therefore, People who are often exposed to lead should not drink milk. They can drink kefir instead, because kefir contains very little lactose and most of it has turned into lactic acid.

2. Lactose intolerant: Some people are severely deficient in lactase, so the lactose in the milk ingested into the human body cannot be converted into galactose and glucose for absorption and utilization in the small intestine, but directly enters the intestine. The large intestine increases the osmotic pressure of the intestinal cavity, causing the large intestinal mucosa to absorb a large amount of water. In addition, lactose can produce lactic acid through bacterial fermentation in the intestine, causing the intestinal PH value to drop below 6, thereby stimulating the large intestine and causing abdominal distension, abdominal pain, and gas. and diarrhea.

3. People with milk allergy: Some people will experience abdominal pain, diarrhea and other symptoms after drinking milk. Some people with severe allergies may even develop rhinitis, asthma or urticaria.

4. Patients with reflux esophagitis: Milk can reduce the pressure of the lower esophageal sphincter, thereby increasing the reflux of gastric juice or intestinal juice and aggravating esophagitis.

5. Patients after abdominal and gastrectomy surgeries: The lactase in the patient's body will be affected and reduced. After drinking milk, lactose cannot be decomposed and will ferment in the body, producing water, lactic acid and a large amount of carbon dioxide. Make the patient bloated. During abdominal surgery, the intestinal tube is exposed to the air for a long time, and the mesentery is stretched, which delays the recovery of intestinal peristalsis after surgery. The gas produced in the intestinal cavity due to swallowing or fermentation cannot be discharged in time, which will aggravate abdominal distension and may cause abdominal pain, intra-abdominal pain, etc. The pressure increases, and the sutures may even bulge and crack, and the abdominal wall incision may split.

After gastrectomy, since the gastric pouch remaining after the operation is very small, milk containing lactose will quickly flow into the small intestine, making the already insufficient lactase enzyme even more insufficient or deficient. :

The correct way to drink milk:

Milk is a well-known nutritional drink with good health and medical value. Milk is a complete protein food that plays an important role in the formation and development of the brain and nerves. The cholesterol content in milk fat is lower than that of meat and eggs, and it has the effect of lowering cholesterol in the body.

Milk can neutralize gastric acid and prevent gastric acid from irritating the ulcer surface. Therefore, taking milk has a good therapeutic effect on peptic tract ulcers, especially gastric and duodenal ulcers. Frozen milk can constrict blood vessels and can also stop bleeding from gastrointestinal ulcers. "Yoghurt" made from fermented milk can protect the human body from and reduce the damage of toxic substances, stimulate the secretion of gastric juice, and enhance the function of gastrointestinal digestion. It is most suitable for liver disease, gastrointestinal patients, people with physical weakness, and infants and young children. drink.

It is also reported that the choline content in yogurt is particularly high, which can regulate the concentration of cholesterol in the body. At the same time, because yogurt contains orotic acid, it can inhibit the liver from producing cholesterol and reduce the accumulation of cholesterol in blood vessels. Attachment to the wall, thereby lowering the total cholesterol content in the blood. Therefore, people suffering from cardiovascular diseases are of great benefit from taking kefir.

Reference: Baidu Encyclopedia-Milk