Milk is a well-known nutrient, but it is not perfect. Therefore, you must be careful when drinking milk. The following situations are not suitable for drinking:

(1) People who are allergic to milk.

(2) For those who don't accept drinking milk, that is, those who lack lactase in the body, the reaction is often flatulence, fart, even abdominal pain and diarrhea.

(3) subtotal gastrectomy.

(4) Patients with ulcerative colitis. (5) Patients with reflux esophagitis.

(6) Patients with cholecystitis and pancreatitis.

(7) Patients with irritable bowel syndrome.

So to sum up, it varies from person to person, and drinking milk depends on everyone's physical fitness. According to experience, the best time for adults to drink milk is usually after meals 1 hour, because drinking milk on an empty stomach is not easily absorbed by the stomach.

Drinking milk before going to bed is beneficial to the body's absorption and utilization of calcium. Most of the calcium taken in dinner is absorbed and utilized by the human body before going to bed. After sleep, especially after midnight, the level of blood calcium will gradually decrease, and the decrease of blood calcium will promote hyperparathyroidism. Hormones will act on bone tissue, so that part of calcium in bone tissue will be dissolved into blood, and the stable balance of blood calcium will be maintained. This dissolution is a self-regulating function of human body, which will become one of the causes of osteoporosis after a long time. Drink milk before going to bed at night, the calcium in milk can be absorbed by blood slowly, and the blood calcium can be supplemented and balanced all night, so it is beneficial to drink milk before going to bed without dissolving calcium in bones to prevent bone loss and osteoporosis.