Milk contains lactose, which needs to be decomposed by lactase in the small intestine after drinking. However, some people lack this enzyme, which is called lactose intolerance. Lactase deficiency is a normal phenomenon, which is generally believed to be related to genetic mutation caused by different eating habits formed from generation to generation. The proportion of Asians is very high, and I belong to this category. Lactose that has not been decomposed by lactase produces small molecular organic acids such as acetic acid, propionic acid, butyric acid, etc. under bacterial fermentation, and produces some gases such as methane, H2, CO2, etc. Most of these products can be reabsorbed by colon, while lactose that has not been absorbed or yet decomposed can cause symptoms such as bowel sounds, abdominal distension, abdominal pain, exhaust, discomfort, diarrhea, etc. You can use yogurt instead ... There are several points to note: 1. Milk and leeks or spinach can't be eaten together. Mixing milk with leeks containing more oxalic acid will affect the absorption of calcium. 2. Milk and juice can't be eaten together. More than 8% of protein in milk is casein. For example, in acidic conditions, casein is easy to agglutinate, which will easily lead to indigestion and diarrhea. Therefore, it is recommended not to eat fruit immediately after eating milk or dairy products. 3. Oranges and milk can't be eaten together for about 1 hour before and after drinking milk. It is not advisable to eat oranges. Because once the protein in milk meets the fruit acid in orange, it will solidify, which will affect the digestion and absorption of milk, and it is not suitable to eat other acidic fruits during this time. 4. The lysine contained in milk and sugar milk can react with fructose under heating conditions to generate toxic fructosyl lysine, which is harmful to human body. Don't add sugar to fresh milk when it is boiled. It's not too late to add sugar after the milk is cooked and cooled a little. 5. Milk and chocolate milk are rich in protein and calcium, while chocolate contains oxalic acid, which will combine together to form insoluble calcium oxalate, greatly affecting the absorption of calcium. Even dry hair, diarrhea, slow growth and so on. 6. Milk and medicine Some people like to take medicine with milk instead of boiled water. In fact, milk will obviously affect the body's absorption of drugs. Because milk is easy to form a covering film on the surface of drugs, minerals such as calcium and magnesium in milk react with drugs to form water-insoluble substances, thus affecting the release and absorption of drug effects. Therefore, do not drink milk for 1 hour before and after taking the medicine. 7. Milk and tea When drinking milk, you should not drink tea at the same time, because tannic acid in tea will hinder the absorption of calcium ions in milk.

remember to adopt it.