What are the benefits of drinking milk? Professor Heishen, director of the German Federal Milk Research Institute, once pointed out that drinking a glass of milk every day has at least the benefits of 1 1: ① Milk contains potassium, which can keep the arterial wall stable when blood pressure is high, reduce the risk of stroke, and prevent and treat hypertension and heart disease; ② It can prevent the human body from absorbing toxic metals such as lead and cadmium in food; ③ Yogurt and skim milk can enhance the immune system function and prevent the growth of tumor cells; ④ Tyrosine in milk can promote the increase of the happy hormone serotonin; ⑤ Iodine, zinc and lecithin in milk can greatly improve the working efficiency of the brain; ⑥ Iron, copper and vitamin A in milk have cosmetic effects and keep skin smooth and plump; ⑦ Calcium in milk can strengthen bones and teeth and prevent bone atrophy and fracture; Magnesium in milk can make the heart and nervous system anti-fatigue; Pet-name ruby zinc in milk can promote wound healing faster; Attending vitamins in milk can improve eyesight; 1 1 Milk contains L- tryptophan and other substances. Drinking a cup before going to bed has hypnotic effect. Drinking milk is especially beneficial to patients with hypertension. Researcher Zhao Lin, director of Trace Elements Research Office of Institute of Clinical Medicine, General Hospital of Chinese People's Liberation Army, affirmed that blood vessels have dilation and contraction reactions. If the contraction response of blood vessels is enhanced, the diameter of blood vessels will become smaller, and the wall of blood vessels will be stretched tightly, like a hard plastic tube, which cannot expand or contract and cannot buffer the pressure in blood vessels, and hypertension will occur. Through long-term observation, medical scientists have found that sodium metabolism and calcium metabolism in blood must maintain a certain proportion and relative dynamic balance, otherwise diseases will occur. The sodium content in blood of patients with hypertension is generally high, so calcium supplementation has the function of "removing sodium" and can stabilize blood pressure. Dr mccullough, director of the hypertension prevention and control program at Oregon Health University, believes that the key to solving hypertension is not sodium, magnesium or other minerals, but calcium. He has done a controlled trial on the direct effect of calcium supplementation on hypertension. If patients with hypertension are supplemented with 1000 mg calcium every day for 8 weeks, their blood pressure will drop obviously. Some patients can return to normal blood pressure even if they drink milk in moderation without other antihypertensive drugs. Because milk contains more calcium. If people increase the daily intake of calcium from 450 ~ 500mg to1500mg, then 45% ~ 50% patients with hypertension will get significant antihypertensive effect. Calcium is the most obvious nutrient in the diet of Chinese residents, and milk is the most effective, balanced, cheapest and most convenient way to supplement calcium. How should people drink milk? Gao Yingjun, a famous professor of nutrition at Beijing Normal University, told everyone that it is appropriate for primary and secondary school students and adults to drink two cups of milk (about 500 grams) every day. If they digest a lot, they can also drink some, which can basically meet people's daily demand for calcium. Eating some carbohydrates such as bread and steamed bread while drinking milk is beneficial to the utilization and absorption of milk. Drink milk in the morning and evening. Professor Gao Yingjun emphasized that children should not drink yogurt. Drinking milk at night is very beneficial to sleep. Because there are two hypnotic substances in milk-L-tryptophan, which can promote the synthesis of sleep serotonin, the effect is obvious, even a glass of milk can make people fall asleep; The other is natural morphine with anesthetic effect. But it is not advisable to drink more milk for breakfast. Eating too much milk in the morning will inhibit the cerebral cortex and affect work and study during the day. Someone asked, "Why do I have diarrhea when I drink milk?" This is because many people drink improperly. If you drink milk, you should drink it in small sips, so that the milk and saliva can be fully mixed, which is beneficial to absorption. Drinking milk, direct contact with acidic substances in the stomach, makes protein and fat in milk agglomerate, forming indigestible substances. People with weak gastrointestinal function will have diarrhea, abdominal distension and indigestion due to abnormal fermentation. Yu Ruomu, a famous nutritionist, gave a detailed and authoritative introduction to yogurt, with special emphasis on the following points: A cup of yogurt is equivalent to a meal. Generally speaking, the composition of yogurt is higher than that of raw milk. Compared with the RDA in China, the energy and calcium of a cup of yogurt is about 30% RDA. If we say "three meals a day", a cup of yogurt can really provide the main nutrition of a meal. The energy and most nutrients in yogurt are much higher than those in milk. Especially, if milk powder is added in the production process, the nutritional components with increased content include energy, protein, minerals, such as calcium and folic acid, and some new effective components, such as galactose, lactic acid and lactic acid bacteria. Only the lactose content decreased. Yogurt has the following advantages: ① Yogurt has high nutritional density. ② Yogurt is easier to digest. ③ Yogurt is an ideal weaning food for children. ④ Yogurt promotes brain development. ⑤ Yogurt prevents diarrhea. Yogurt is good for the elderly. Some people have gastrointestinal discomfort or diarrhea after drinking milk, which is called lactose intolerance or lactose indigestion, because the body lacks lactose decomposing enzymes and has no ability to digest lactose. When patients drink milk or other dairy products, lactose in milk cannot be decomposed and utilized, and a large amount of water will accumulate in the small intestine. When lactose reaches the large intestine, it will ferment and stimulate the intestinal mucosa, leading to abdominal distension, bowel sounds, spasm, stomach pain, diarrhea and so on. If it is a baby, continuing to drink milk in this case is likely to kill you. If you have stomach upset when drinking milk, you should stop drinking milk or remove lactose from food. Yogurt is a good choice for people with lactose intolerance. Yogurt contains lactase. Drinking yogurt regularly can improve the digestion and tolerance of lactose. Medical experts especially recommend 10 people to drink more yogurt. They are people who often drink alcohol, smoke, engage in computer operation, suffer from dust occupational diseases, receive chemotherapy, premature aging, take antibiotics, suffer from atrophic gastritis, osteoporosis and cardiovascular diseases. At present, the world's per capita milk accounts for more than 0/00 kilograms per year. We should also put milk into our daily diet, just like grains and vegetables. The good habit of drinking milk will bring us a healthy today and a strong tomorrow!