1. Milk function-rich in nutrition
Milk is rich in nutrition, easy to digest and absorb, inexpensive and convenient to eat. It is the most "near-perfect food", known as "white blood" and the most ideal natural food.
Protein in milk is mainly casein, albumin, globulin, milk protein, etc. Among more than 20 kinds of amino acids, there are 8 kinds of amino acids necessary for human body. Milk protein is a complete protein, and its digestibility is as high as 98%. Milk fat is a high-quality fat with the best quality. 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 content ratio of various minerals, especially calcium and phosphorus, is suitable, which is 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, 0.2mg of phosphorus, 0.40mg of vitamin A 140 international unit, 0.04mg of vitamin B/kloc-0, and 0.04mg of vitamin B. It can supply 69 kcal of heat.
2. Function of milk-inhibiting tumor
Milk and dairy cheese contain a kind of CLA substance, which can effectively destroy the free radicals that are dangerous to cancer in the human body, and can quickly combine with the cell membrane, so that the cells are in a state of defending against the invasion of cancer-making substances, thus playing a role in preventing cancer. Moreover, the calcium contained in milk can effectively destroy carcinogens in human intestines, make them decompose and change 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 that can enhance the body's disease resistance and also have cancer prevention effects. In addition, yogurt contains an enzyme, which can effectively prevent the side effects caused by chemotherapy and radiotherapy for cancer patients.
3. Milk function-calming nerves
Italian researchers have found that milk has a calming effect because it contains an ingredient that can inhibit nerve excitement.
Rosella, a female researcher in Genoa? A research report written by Avallone said that some foods that people eat daily, such as milk, contain a certain amount of substances that play a calming and tranquilizing role, such as benzodiazepine. Avallone believes that in addition to milk, soybeans, cereals and other foods also have significant sedative effects.
Avallone 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. Milk Function-beauty beauty
Milk is rich in nutrition, and contains advanced fat, various protein, vitamins and minerals, especially vitamin B family. It can moisturize the skin, protect the epidermis, prevent cracking and wrinkle, make the skin smooth, soft and tender, make the hair black and reduce shedding, thus playing a role in skin care and beauty.
The iron, copper and vitamin A contained in milk have beauty beauty effect to keep 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 from evaporating, and also provide moisture temporarily, so milk is a natural skin care product and a "green skin care product".
Therefore, since ancient times, milk and dairy products have been recorded in both foreign countries and domestic countries. For example, the ancient Romans used bread soaked in milk to wipe their faces 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. Milk function-help to lose weight
Dairy products are high in fat and calories, so many people don't eat dairy products in order 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 fat degradation in the human body.
The research team divided 34 healthy obese people into two groups, and asked them to eat 500 calories less than usual every day. One group drank 3 servings of low-fat yogurt containing 1 100 mg of calcium 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% more 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 children's brain development
Milk is the only food for mammals to survive and develop after birth? It contains all the nutrients necessary for the development of its young.
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 function of immune system, prevent the growth of tumor cells and prevent arteriosclerosis.
Yogurt contains a lot of lactic acid and active lactic acid bacteria beneficial to human health, which is beneficial to human digestion and absorption, activates pepsin, enhances digestive function and improves the absorption rate of mineral elements calcium, phosphorus and iron.
7. milk function-expired milk can be used to polish shoes.
Expired milk can be used to polish shoes. First, brush off the dirt on the vamp, then dip the expired and sour milk with gauze and evenly smear it on the vamp. After drying, wipe it with a dry cloth, and the vamp will be as bright as new.
Yogurt can enhance the function of immune system, prevent the growth of tumor cells and prevent arteriosclerosis.
Yogurt contains a lot of lactic acid and active lactic acid bacteria beneficial to human health, which is beneficial to human digestion and absorption, activates pepsin, enhances digestive function and improves the absorption rate of mineral elements calcium, phosphorus and iron.
[Edit this paragraph] Reasonable drinking
According to the research of medical experts in the United States and Britain, milk contains two kinds of hypnotic substances unknown to people in the past. One of them is tryptophan synthesized by serotonin, which can promote sleep. Because of its function, people often need only a glass of milk to fall asleep. The other is a natural morphine substance with similar anesthetic and sedative effects. Therefore, if you drink milk in the morning, it will inevitably inhibit people's cerebral cortex and affect their work and study during the day. In addition, drinking milk in the morning is not conducive to digestion and absorption. This is because the protein of milk can be absorbed by the human body only after it is decomposed into amino acids in the stomach and small intestine. In the morning on an empty stomach, the emptying of the stomach and intestines is very fast, so the milk is discharged to the large intestine before it can be digested. Therefore, nutrition experts believe that it is best to drink milk in the evening or half an hour before going to bed.
[Edit this paragraph] Milk and health
Description: In 2000 1 1 month, the state passed a "milk drinking plan for students", mainly through the distribution of special departments, so that primary and secondary school students can drink milk every day between classes. The purpose is to improve the physical quality of teenagers. Why does ordinary milk become a "magic weapon" to improve physical fitness? What are the nutrients in milk? What are its benefits to the human body? In view of these problems, we carry out some investigations and find information in order to have a comprehensive understanding of this.
Recently, I found that the number and frequency of drinking milk at home are getting higher and higher. I asked my parents, and they said that drinking milk is good, nutritious and can also supplement calcium. Not long ago, I saw on TV that in 2000 1 1 month, the state passed a "milk drinking plan for students", mainly through the distribution of special departments, so that primary and secondary school students can drink milk every day during recess. The purpose is to improve the physical quality of teenagers. Why does ordinary milk become a "magic weapon" to improve physical fitness? What are the nutrients in milk? What are its benefits to the human body? In view of these problems, the teacher suggested that we take this as the subject, carry out some investigations and find information, in order to have a comprehensive understanding of this.
[Edit this paragraph] Chemical composition and nutritional value of milk
The chemical composition of milk is very complicated, with at least 100. The main components are water, fat, phospholipids, protein, lactose and inorganic salts. The main chemical components of general milk are:
Moisture: 87.5%
Fat: 3.5%
Protein: 3.4%
Lactose: 4.6%
Inorganic salt: 0.7%
There are 20 kinds of amino acids that make up protein of human body, among which 8 kinds are not synthesized by human body itself. These amino acids are called essential amino acids. If the protein we eat contains all the essential amino acids, this protein is called total protein. Protein in milk is the whole protein.
Inorganic salts in milk are also called minerals. Milk contains cations such as Ca2+, Mg2+, K+ and Fe3+ and anions such as PO43-, SO42- and Cl-. In addition, there are trace elements I, Cu, Zn, Mn and so on. Most of these elements play an important role in human development, growth and metabolic regulation. Calcium is the highest inorganic salt in human body, and it is the main component of bones and teeth. 90% of calcium in human body is concentrated in teeth and bones. Children and adolescents need sufficient calcium for their growth and development, as do pregnant women, adults and middle-aged and elderly people. Lack of calcium will affect the normal development of teeth and bones and lead to rickets. Calcium in nature exists in a combined state. Only when it is passively absorbed by plants to form bioactive calcium can it be better absorbed and utilized by human body. Milk is rich in active calcium, which is one of the best sources of calcium for human beings. 1 liter of fresh milk contains about 1250 mg of active calcium, ranking first among many foods, which is about10/times that of rice, 75 times that of lean beef and1/of lean pork. Good absorption is especially critical for calcium supplementation. Therefore, the saying that "milk can supplement calcium" has its scientific truth.
For middle-aged and elderly people, milk also has a great advantage, that is, compared with the high cholesterol of many animal proteins, the cholesterol content in milk is lower (milk:13mg/100g; Lean meat: 77mg/100g). It is worth mentioning that some ingredients in milk can also inhibit the amount of cholesterol produced by the liver, so that milk can also lower cholesterol.
1 Take a cup of hot milk every night before going to bed to cure neurasthenia and insomnia.
2, milk, goat's milk each125ml, mixed and boiled, once every morning on an empty stomach. Suitable for stomachache and gastric ulcer.
3, 250 ml of milk, honey 100 g, mixed and boiled, once every morning on an empty stomach. Treat habitual constipation and dry stool.
4, 200 ml of fresh milk, 5 ml of ginger juice, appropriate amount of sugar, steaming, treating nausea, vomiting, acid regurgitation and belching.
5, 250 ml of milk, 50 grams of honey, 6 grams of Bletilla striata powder, boiled and taken to treat gastric and duodenal ulcers.
6, milk boiled, when used as tea, thirsty to drink it, can cure postpartum weakness, deficiency and thirst (more urine, more weight loss).
7, 500 ml of milk, gavage, can make poison precipitation, reduce the precipitation of mercury and arsenic drugs in the body, and have a protective effect on the stomach.
8, milk porridge: glutinous rice 100 grams of porridge, add 250 ml of milk, white sugar to taste. It has the effects of moistening five internal organs, nourishing yin and promoting body fluid production, and is suitable for middle-aged and elderly people or patients with debility after illness, deficiency of qi and blood, emaciation and weakness, nausea, hiccups, thirst and thirst, and dry stool. When taking milk porridge, avoid eating acidic food.
9. Ginger and leek milk soup: 250g of leek and 250g of ginger. * * * Mash the juice with clean gauze, add 250g of milk, boil it and take it while it is hot. It is suitable for stomach cold gastric ulcer, chronic gastritis, epigastric pain, nausea and so on.
10, fragrant ginger milk: 2 cloves, ginger juice 1 teaspoon, 250 ml of milk, boil together, remove the cloves, and taste with a little sugar. It has the effects of tonifying, lowering qi and stopping vomiting, and is suitable for children with malnutrition and emaciation who vomit immediately after eating.
Common misunderstandings of drinking milk
0 1, milk must be boiled: the temperature requirement of milk disinfection is not high, it takes 3 minutes at 70℃ and 6 minutes at 60℃. If boiled, the temperature reaches 100℃, and the lactose in milk is coked, while caramel can induce cancer. > in boiled milk: Calcium will appear phosphoric acid precipitation phenomenon; Thereby reducing the nutritional value of milk.
02. The thicker the milk, the better: The so-called over-concentrated milk refers to adding more milk powder and less water to the milk, so that the milk concentration exceeds the normal proportion standard, and some parents add milk powder to it for fear that the fresh milk is too weak. The intensity of milk that infants and young children drink should be directly proportional to their age, and its concentration should gradually increase according to their age. If infants often drink too much milk, it will cause diarrhea, constipation, loss of appetite, and even refusal to eat. Over time, it will cause acute hemorrhagic enteritis.
03, the more sugar, the better: sugar is to increase the calories supplied by carbohydrates, and it must be quantified, generally 5 ~ 8 grams of sugar per 100 ml of milk. When too much sugar enters the baby's body, it will retain water in the body, making the muscles and subcutaneous tissues soft and weak, looking fat, and the body's resistance is poor, which will also become a risk factor for some diseases.
It is best to add sucrose to milk. Sucrose enters the digestive tract and is decomposed by digestive juice, which becomes glucose and is absorbed by the human body.
Some parents buy glucose for their children, so it is unnecessary. Glucose is low in sweetness, and it is easy to exceed the prescribed range when used too much, and children will refuse to eat because it is not sweet.
Sugar and milk are heated together, so that lysine in milk will react with sugar at high temperature (80℃ ~100℃) to generate a harmful substance, glycosyl lysine, which is very harmful to children. Therefore, the boiled milk should be dried to a warm temperature (40℃~50℃) before the sugar is dissolved in the milk.
Take medicine with milk and kill two birds with one stone.
Milk can obviously affect the absorption rate of drugs by human body, and it is also easy to make drugs form a covering film, so that mineral ions such as calcium and magnesium in milk react with drugs to generate water-insoluble substances, which not only reduces the efficacy, but also may cause harm to the body. Therefore, it is best not to drink milk for1~ 2 hours before and after taking the medicine.
04. Feeding babies with yogurt: Although antibiotics produced by lactic acid bacteria in yogurt can inhibit the growth of many pathogenic bacteria, they also destroy the growth conditions of normal flora beneficial to human body and affect the normal digestive function, especially infants and premature infants suffering from gastroenteritis. If they are fed with yogurt, they may cause vomiting and gangrenous enteritis.
05. Add orange juice or lemon juice to enhance flavor: Both orange juice and lemon are fruits with high fruit acid, and protein in milk will denature protein and reduce its nutritional value.
06. Adding rice soup and porridge to milk: Milk contains vitamin A, while rice soup and porridge are mainly starch, and they contain lipoxygenase, which will destroy vitamin A.. Children, especially infants and young children, if they don't get enough vitamin A, they will be stunted and sickly.
Replace milk with condensed milk: condensed milk is too sweet and must be diluted with 5 ~ 8 times of water. When the sweetness meets the requirements, the concentration of protein and fat is also reduced by half compared with fresh milk, which cannot meet the needs of baby's growth and development. Adding water makes the concentration of protein and fat close to fresh milk, and the sugar content will be high, which will easily cause diarrhea in children, and it will also bring difficulties to add complementary food in the future.
[Edit this paragraph] Milk is also harmful.
Milk is rich in nutrition, and more and more people drink milk every day. However, many studies have found that men who often drink milk are prone to prostate cancer. Prostate cancer is a common malignant tumor in male reproductive system. A research team in Boston, USA, conducted a follow-up survey of 20,885 American male doctors for as long as 1 1 year. The dairy products consumed mainly include skim milk, whole milk and cheese, among which1kloc-0/2 men developed prostate cancer. After statistical analysis, it was found that the plasma concentration of1,25-dihydroxyvitamin D3 (with anti-prostate cancer effect) in men who ingested 600 mg of calcium every day was significantly lower than that in men who ingested 150 mg of calcium from dairy products every day, and the risk of prostate cancer increased by 32%. After excluding age, weight, smoking, physical exercise and other influencing factors, it was found that men who ate more than 2.5 servings of dairy products every day (each serving is equivalent to 240ml of milk) had a 34% higher risk of prostate cancer than those who ate less than 0.5 servings of dairy products. Researchers in Philadelphia, USA, also confirmed that eating more dairy products will increase the risk of prostate cancer in men through an epidemiological survey in recent years. Domestic studies have also found that milk intake is significantly related to the incidence of prostate cancer, which may be due to the high estrogen content in some brands of milk. Fortunately, some plant compounds in fruits and vegetables have certain anti-cancer effects. Lycopene is an important carotenoid, which widely exists in fruits and vegetables. Tomato, apricot, guava, watermelon, papaya and red grapes all contain more lycopene, especially in tomato. American researchers conducted a six-year follow-up survey of 46,000 men and found that 773 cases developed prostate cancer. The study found that compared with people who don't eat raw tomatoes, people who eat raw tomatoes 2-4 times a week have a 26% lower risk of prostate cancer, and tomato pizza and ketchup also have this effect; Eating lycopene directly can also reduce the risk of prostate cancer. The antioxidant activity of lycopene is the strongest among natural carotenoids. It can protect the genetic material DNA (deoxyribonucleic acid), inhibit the proliferation of cancer cells and regulate the hormone status. Its anti-prostate cancer effect has been confirmed by a large number of studies. Therefore, in order to care for the prostate, men should drink milk slowly, and don't treat it as a drink. In addition, they should pay special attention to nutritional balance and eat more tomatoes every day.
Milk does not need to be boiled.
Usually, the temperature requirement of milk disinfection is not high, and it takes 3 minutes at 70℃ and 6 minutes at 60℃. If it is boiled and the temperature reaches 100℃, the lactose in milk will be coked, while caramel can induce cancer. Secondly, after boiling, calcium in milk will precipitate with phosphoric acid, thus reducing the nutritional value of milk.
Don't add sugar when boiling milk.
Some people often cook milk with sugar in order to make it saccharified quickly, which is unscientific. Because lysine and fructose in milk will produce a toxic substance-fructosyl lysine at high temperature. This substance can't be digested and absorbed by human body, and it will do harm to human body. If you want to drink sweet milk, you'd better wait until the milk is boiled before putting sugar.
The thicker the milk, the better.
Some people think that the thicker the milk, the more nutrients the body gets, which is unscientific.
The so-called over-concentrated milk refers to adding more milk powder and less water to milk, so that the concentration of milk exceeds the normal proportion standard. Some people are afraid that fresh milk is too weak, so they add milk powder to it. If infants often eat thick milk, it will cause diarrhea, constipation, loss of appetite, and even refusal to eat, and it will also cause acute hemorrhagic enteritis. This is because the organs of infants and young children are delicate and cannot bear the heavy burden and pressure.
Avoid adding calcium powder to milk
Protein in milk is mainly casein, lactalbumin and lactoglobulin, and the content of casein is the most, accounting for 83% of milk protein, and casein is composed of OCK-, K-, β-and γ-casein. If you add calcium powder when drinking milk, too much calcium ion will combine with OCK- and β-casein, which will make milk coagulate. In addition, calcium will combine with other proteins in milk to produce precipitation, especially when heated.
This phenomenon is more obvious. Therefore, to supplement calcium for children, calcium powder should not be added to milk.
Avoid taking medicines with milk.
There are many calcium and iron plasmas in milk and its dairy products. Generally, every liter of fresh milk contains 0/300 mg of calcium/kloc and 0.4 mg of iron. These ions and some drugs (such as tetracyclines) can form stable complexes or insoluble salts, which make drugs difficult to be absorbed by gastrointestinal tract, and some drugs are even destroyed by these ions. If these drugs are taken with milk, it will greatly reduce the concentration of drugs in the blood and affect the therapeutic effect. Therefore, drugs should not be taken with milk. Eating milk and its products should be separated from the medication time by 1 half an hour.
Avoid drinking cold milk in summer.
In hot summer, many people covet convenience and coolness, and like to drink cold milk, which is actually harmful. Milk is rich in nutrients and contains protein, mainly casein, followed by lactalbumin and lactoglobulin. Due to the high temperature in summer, milk is a good culture medium for bacteria. After a few hours of cooling, boiled milk will be contaminated and propagated by bacteria, which will easily cause intestinal diseases after drinking. Therefore, it is better to drink hot milk than cold milk in summer. Because hot milk not only kills bacteria, but also denatures protein in milk, which is more conducive to human digestion and absorption.
Oranges and milk-before and after drinking milk 1 hour or so, oranges should not be eaten.
Because once protein in milk meets the fruit acid in orange, it will solidify, which will affect the digestion and absorption of milk, and it is not suitable to eat other acidic fruits during this time.
Milk and chocolate
The reaction between them affects the absorption of calcium in milk.
Milk is rich in protein and calcium, while chocolate contains oxalic acid, which will combine with food to form insoluble calcium oxalate, greatly affecting the absorption of calcium. Even dry hair, diarrhea, slow growth and so on.
It is not advisable to drink milk on an empty stomach.
Milk contains a lot of protein. If you drink it on an empty stomach, protein will "be forced" to convert it into heat energy and consume it, which will not play a nourishing role. The best way to drink it is to eat it with food containing flour, or to drink it two hours after a meal, or to drink it before going to bed. It not only has the functions of nourishing health care, promoting digestion, but also has the function of exhausting air and relaxing bowels.
It is not advisable to add orange juice or lemon juice to milk to increase flavor.
It seems a good idea to add orange juice or lemon juice to milk, but in fact, orange juice and lemon are fruits with high fruit acid. When fruit acid meets protein in milk, protein will be denatured, thus reducing the nutritional value of protein.
It is not advisable to add rice soup and porridge to milk.
Some people think that this can make the nutrition complementary. In fact, this practice is very unscientific. Milk contains vitamin A, while rice soup and porridge are mainly starch, which contains lipoxygenase, which will destroy vitamin A. Children, especially infants and young children, if they don't get enough vitamin A, they will be stunted and sickly. Therefore, even to supplement nutrition, the two should be eaten separately.
Bottled milk cannot be dried in the sun.
Someone learned from the advertisement that vitamin D should be supplemented to supplement calcium, and more sunshine is a good way to get vitamin D, so they put the bottled milk in the sun according to the prescription. In fact, this is not worth the loss. Milk may get some vitamin D, but it loses vitamin B 1, vitamin B2 and vitamin C. Because these three nutrients will decompose in the sun, so that some or all of them are lost; Moreover, lactose will ferment in the sun, which will make milk go bad.
Condensed milk cannot replace milk.
Condensed milk is a kind of milk product, which is made by evaporating fresh milk to 2/5 of its original capacity, then adding 40% sucrose and canning. Some people are influenced by "everything that is concentrated is the essence", so condensed milk is used instead of milk. This is obviously wrong. Condensed milk is too sweet and must be diluted with 5-8 times of water. But when the sweetness meets the requirements, the concentration of protein and fat is often reduced by half compared with fresh milk. If water is added to condensed milk to make the concentration of protein and fat close to that of fresh milk, the sugar content will be higher.
[Edit this paragraph] Traditional Chinese Medicine Interpretation of Milk
[Name] Milk, milk.
[Sexual taste] Sweet, flat in nature.
[meridian tropism] enters the heart, spleen, lung and stomach meridians.
[Function] Tonifying qi and blood, benefiting lung and stomach, promoting fluid production and moistening intestines. For chronic illness, deficiency of qi and blood, malnutrition, choking and nausea, gastric and duodenal ulcer, thirst quenching and constipation.