1. Lack of protein, fat and sugar. More than half of those who drink regularly don't eat enough. Because alcohol can reduce gastric peristalsis, cause persistent nausea, make alcoholics lose appetite and reduce food intake.

2. Decreased protein digestibility. Experts found in gastric biopsy that about a quarter of long-term alcoholics suffer from atrophic gastritis, and their gastric acid and pepsin are below normal levels.

3. Lack of multivitamins. Drinking alcohol is most likely to lead to folic acid deficiency, followed by vitamin B 1, nicotinic acid and vitamin B6 deficiency. Clinical manifestations include neuropathy, glossitis, anemia and cytopenia.

4. Lack of elements such as calcium, magnesium and zinc. Due to the influence of alcohol on the structure of small intestine and the damage to digestive glands, fatty dysentery often occurs, which damages a variety of inorganic salts while defecating, and also increases the excretion of inorganic salts from the kidney; On the other hand, the reduction of inorganic salts obtained from feed can reduce the contents of copper, magnesium and zinc in blood.

5. Excessive drinking can cause liver injury: the detoxification of alcohol occurs in the liver, and about 90-95% of alcohol is metabolized through the liver. Therefore, drinking alcohol is particularly harmful to the liver. Alcohol can damage liver cells and lead to liver diseases. Persistent heavy drinkers are prone to fatty liver and alcoholic hepatitis, which can develop into alcoholic cirrhosis and eventually liver cancer. Repeated drinking will not only cause acute alcoholic hepatitis, but also induce acute necrotizing pancreatitis, even life-threatening.

6. Excessive drinking can cause anemia: after toxins such as alcohol are absorbed by the blood, they will stimulate and corrode the cell membranes of red blood cells and other blood cells, leading to atrophy, rupture and dissolution of blood cells, and the number will decrease. Anemia patients often lack nutrients needed for hematopoiesis, and toxic substances such as alcohol will destroy the nutrients they absorb. This will further lead to the disorder of blood cell production, so that red blood cells, white blood cells, platelets and so on are less and less, leading to severe anemia. Alcohol will also interfere with the hematopoietic function of hematopoietic organs such as bone marrow, liver and spleen.

7. Excessive drinking can cause obesity: Excessive drinking can make some people fat. This is because alcohol has a high calorific value and is first absorbed and oxidized after entering the human body. Food eaten with alcohol or alcohol is not digested and used in time, and the food is converted into fat and stored in the body.