Drinking milk will give you diarrhea if you have a bad stomach. It is best not to drink on an empty stomach, do not drink cold milk, such as just out of the refrigerator ...... put it hot rolled cool a little bit before drinking, it will be much better. Drink slowly, do not gurgle all finish it. Let your stomach and intestines have a chance to get used to it. Drinking milk is good for you. The reason why people in Japan have grown so tall and fast in recent decades is that they have developed the habit of drinking milk since childhood. So as long as you won't be allergic to milk, develop a good milk drinking habit! Many people often have diarrhea after drinking milk, statistics found that the rate of lactose intolerance in the Orient up to more than 90%, and the symptoms vary from person to person. Physicians point out that this phenomenon is genetically determined and will not be changed by the environment; to reduce the symptoms of lactose intolerance, dairy should be accompanied by other foods when drinking, or can reduce the chance of diarrhea. According to medical reports, lactose intolerance is a common nutrient absorption disorder. Many people who drink milk are unable to break down lactose into glucose and galactose, resulting in a large amount of short-bonded fatty acids and hydrogen accumulating in the intestines, which can lead to diarrhea, bloating, or abdominal cramps. This phenomenon is caused by a recessive gene that affects the activity of lactase and does not change due to the external environment, so people with lactose intolerance can only avoid diarrhea by not drinking milk. Interestingly, lactase decreases after the weaning period; therefore, babies and young children do not get diarrhea from drinking milk, but only become lactose intolerant in adulthood. Surveys show that the majority of people with this problem are from the East. To avoid lactose intolerance, drink milk slowly or add two slices of bread to prolong the gastric emptying time, which may reduce the chance of diarrhea. The best thing to do is to eat less honey, because honey has a laxative effect, and more food will aggravate the diarrhea!