Drinking milk in moderation for a long time can replenish the protein and other nutrients needed by the body; however, if you are lactose intolerant for a long time, drinking milk may lead to abdominal pain, diarrhea and other discomforts, which is not conducive to good health; the average person will also aggravate the burden on the body, and even lead to nutritional imbalance. Milk is a nutritious food, every 100ml of milk, containing protein for 3.1g, calcium for 108mg, carbohydrates for 6g, fat 3.4g as well as an unequal amount of other nutrients. Drinking milk in moderation over a long period of time can help strengthen your body by taking in the protein and other components. The calcium component in it, which is the main component of bones and teeth, can maintain bone density with proper supplementation. However, it should be noted that for lactose intolerant people if they drink a lot of milk for a long time, it may lead to diarrhea, bloating, abdominal pain, hyperactive bowel sounds, nausea, vomiting and other gastrointestinal symptoms. Ordinary people will also aggravate the body burden, and even lead to nutritional imbalance, but also easy to lead to obesity and other problems. Those who are allergic to milk should not drink milk.