1. Functions of milk-rich in nutrition, easy to digest and absorb, low in price and convenient to eat. It is the most "almost perfect food", known as "white blood" and the most ideal natural food. Protein in milk is mainly casein, albumin, globulin and milk protein. Among more than 20 kinds of amino acids, there are 8 kinds of amino acids necessary for human body. Milk protein is completely protein, and the digestibility is as high as 98%. Milk fat is the best quality fat. Its digestibility is above 95%, and it contains a lot of fat-soluble vitamins. Lactose in milk is galactose and lactose, which are the most easily digested and absorbed sugars. Minerals and trace elements in milk are dissolved, and the contents of various minerals, especially calcium and phosphorus, are appropriate and easy to digest and absorb. Attachment: Detailed explanation of nutritional components of milk. Every100g of milk contains 87g of water, 3.3g of protein, 4g of fat, 5g of carbohydrate, 93mg of calcium120mg of phosphorus, 0.2mg of iron, 0/40miu of vitamin A/kloc-0, 0.04mg of vitamin B/kloc-0, and 20. 2. The role of milk in inhibiting tumors. Milk and milk cheese contain a CLA substance, which can effectively destroy free radicals that are dangerous to cancer in the human body, and can quickly combine with cell membranes, so that cells are in a state of defending against the invasion of carcinogens, thus playing a role in preventing cancer. Moreover, the calcium contained in milk can effectively destroy carcinogens in human intestines, decompose them into non-carcinogenic substances, and excrete them. Vitamin A, vitamin B2 and vitamin D contained in milk have certain preventive effects on gastric cancer and colon cancer. Moreover, milk also contains a variety of immunoglobulin antibodies, which can enhance the body's disease resistance and prevent cancer. In addition, yogurt contains an enzyme, which can effectively prevent the side effects of chemotherapy and radiotherapy for cancer patients. 3. The role of milk-calming nerves Italian researchers have found that milk has a calming effect because it contains an ingredient that can inhibit nerve excitement. According to a research report written by rosella Avallone, a female researcher in Genoa, Italy, some foods that people eat daily, such as milk, contain a certain amount of substances that play a calming and calming role, such as benzodiazepines. Avalon believes that besides milk, soybeans, grains and other foods also have significant sedative effects. Avalon suggested that when you are upset, you might as well drink a large glass of milk to calm down. Drinking a glass of milk before going to bed can promote sleep. 4. The role of milk-Beauty and Beauty Milk is rich in nutrition, containing high-grade fat, various protein, vitamins and minerals, especially vitamin B family, which can moisturize the skin, protect the epidermis, prevent cracking and wrinkles, make the skin smooth, soft and fair, make the hair black and reduce shedding, thus playing the role of skin care and beauty. Iron, copper and vitamin A contained in milk have the effect of beauty beauty, keeping skin smooth and moist. Whey in milk can eliminate facial wrinkles. Milk can also provide skin with sealing oil, form a film to prevent skin moisture evaporation, and also provide moisture temporarily, so milk is a natural skin care product and a "green skin care product". Therefore, since ancient times, there have been records about milk and dairy products both at home and abroad. For example, the ancient Romans wiped their faces with bread soaked in milk every day, thinking that this would make their skin smooth, white and tender, look young and beautiful, and inhibit the growth of beards. So now some cosmetics also contain milk or dairy products. 5. The role of milk-help to lose weight. Dairy products are high in fat and calories, so many people don't eat dairy products to lose weight. However, a study by the University of Tennessee in the United States shows that the rich calcium in dairy products is very important for the degradation of body fat. The research team divided 34 healthy obese people into two groups and asked them to consume 500 calories less than usual every day. One group drank 3 servings of low-fat yogurt containing calcium 1 100 mg every day, while the other group ate 500 mg of calcium tablets every day. After a period of persistence, the results showed that the average weight, body fat and abdominal fat of the group drinking yogurt were 22%, 6 1% and 8 1% higher than those of the other group, respectively. Researchers believe that calcium in dairy products can help people burn fat and promote the body to produce more enzymes that can degrade fat. So, if you want to lose weight, eat at least 3 servings of low-fat or skim dairy products every day. 6. The function of milk-promoting the development of young children's brains Milk is the only food that mammals rely on for survival and development after birth. It contains all the nutrients that children need to grow up. Phosphorus contained in milk plays an important role in promoting children's brain development. Milk contains vitamin B2, which helps to improve eyesight. Milk contains calcium, which can strengthen the strength of bones and teeth and promote the intellectual development of teenagers. Milk contains lactose, which can promote the absorption of calcium and iron, enhance gastrointestinal peristalsis and promote excretion. Milk contains iron, copper and vitamin A, which has a cosmetic effect and keeps the skin smooth and plump. Magnesium in milk can relieve heart and nervous system fatigue, and zinc can promote wound healing faster. Yogurt can enhance the immune system function, prevent the growth of tumor cells and prevent arteriosclerosis. Yogurt contains a large number of lactic acid and active lactic acid bacteria, which are beneficial to human health. It is beneficial to human digestion and absorption, activates pepsin, enhances digestive function, and improves the absorption rate of mineral elements such as calcium, phosphorus and iron. The best time to drink milk The time to drink milk also has a certain influence on the human body's digestion and absorption of nutrients in milk. The time for children to drink milk depends on their age, and the number, time and amount of milk they drink every day. Adults should pay attention to the time of drinking milk. Some adults have the habit of drinking milk in the morning, which is unscientific. The reason is that after a night's sleep, people's stomachs have already been emptied, ready to eat and digest food. At this time, their stomachs are also emptied quickly. Milk is liquid milk, so their stomachs are excreted faster. Drinking milk on an empty stomach is discharged into the intestine before it is fully digested and absorbed in the stomach, leading to the loss of nutrients. Milk is rich in high quality protein. The main function of these protein is to form new tissues of the human body, and at the same time to repair the original tissues. If you drink milk on an empty stomach, not only will the milk be quickly discharged from your stomach, but the above-mentioned precious protein will also be decomposed by the human body and consumed as heat, which will not give full play to the due role of protein. I'm sorry. Protein in milk is digested and decomposed into various amino acids by pepsin and small intestine in human stomach, and then it can be absorbed and utilized in small intestine. Drinking milk on an empty stomach makes some protein not break down into amino acids, and some amino acids are discharged into the large intestine before being absorbed by the small intestine. In the large intestine, these protein and amino acids are decomposed into substances harmful to human body, which makes the precious protein unable to play its due role. It also increases the burden on the human body. To change this situation, first do not drink milk on an empty stomach in the morning, but drink milk after breakfast 1-2 hours later. There is food in the stomach to prevent the shortcomings of drinking milk on an empty stomach; Second, eat some starchy food before drinking milk, such as steamed bread; Third, when drinking milk in the morning, we should eat some starchy foods such as steamed bread, rice, bread, biscuits and snacks, so that milk can stay in people's stomachs for a long time, milk and gastric juice can be fully hydrolyzed, and protein can be well digested and absorbed. Milk has hypnotic and sedative effects. Morning is a time for people to study and work energetically. Drinking milk will make people sleepy, but it is not good for study and work, so it is best not to drink milk on an empty stomach in the morning. When is a good time to drink milk? It is best to drink milk at night, because milk contains L-tryptophan, a biochemical substance that can make people feel tired and sleepy, and a small amount of morphine, all of which have certain sedative and hypnotic effects, especially L-tryptophan, which is the main raw material for the brain to synthesize hydroxyl color. Serotonin plays a key role in brain sleep, which can temporarily inhibit brain thinking activities, thus making people want to sleep without any side effects. Moreover, milk can be absorbed on the stomach wall, and calcium in milk can also eliminate tension.