Advantages and disadvantages of drinking milk The advantages of drinking milk
First, milk has a calming effect on the human body. People will feel a sense of calm after eating milk, so drinking a glass of milk at night before going to bed will play a role in calming the nerves and promoting sleep.
Second, milk can cure gastric and duodenal ulcer diseases. Milk also has anti-gastric cancer function.
Third, both milk and fermented yogurt can reduce the chance of cancer. 85% of carcinogens are mutagenic, so drinking milk or yogurt often has certain anti-cancer effect.
Fourth, infants drinking milk can promote intellectual development. When lactose in milk is digested, 1 molecular glucose and 1 molecular galactose are produced. Galactose is a component of brain and nerve tissue. Therefore, milk can promote intellectual development.
Fifth, drinking milk for children can promote physical growth and development. According to the experiment, the weight and height of children who drink 500 ml of milk every day are nearly 1 times higher than those who don't drink milk.
Sixth, drinking milk for adults and the elderly can resist aging and prolong life. According to the latest research results, there is a bioactive substance in milk, namely SOD. This active substance can remove a kind of chemical called? Free radicals? Harmful substances, enhance the body's immune function, promote metabolism, so it can resist aging and prolong life. In addition, milk also has the functions of beauty care and beauty.
Studies have proved that every 100 grams of milk can contain 70.5 kilocalories, protein 3.4 grams, fat 3.7 grams, calcium as high as125mg, and the digestibility is 98% ~100%.
Milk is rich in vitamin B2 and vitamin A, and its protein contains various amino acids necessary for the growth and development of the body. In many countries, milk is called full-nutritious food, which is to maintain human health? White blood? .
A study by Heishen, director of the German Federal Milk Research Institute, confirmed that people who drink a glass of milk every day have at least 1 1 benefits.
1. Milk contains potassium, which can keep the arterial wall stable when blood pressure is high, reduce the risk of stroke by half, and prevent and treat hypertension and heart disease.
2. It can prevent the human body from absorbing toxic metal 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 growth of serotonin.
Iodine, zinc and lecithin in milk can greatly improve the working efficiency of the brain.
6. Iron, copper and vitamin A in milk have a cosmetic effect, keeping the skin smooth and plump.
7. Calcium in milk can strengthen bones and prevent them from atrophy and fracture.
8. Magnesium in milk can make the heart and nervous system resistant to fatigue.
10. Vitamin B2 in milk can improve eyesight.
1 1. Milk contains L-tryptamine and other substances, so drinking a cup before going to bed has a hypnotic effect.
There are indeed many benefits of drinking milk every day. It can help us face every day's work energetically and help us prevent some diseases. However, while enjoying the benefits of milk, we should also pay attention to the correct time and method of drinking milk in order to give full play to the maximum effect of milk.
The disadvantages of drinking milk
First, harmful to the health of babies
The latest Parenting Collection in the United States points out that the reason why cows produce milk is to feed calves, not human babies. The author of Parenting Collection and a famous American pediatrician point out that the saturated fat content in milk is too high, which is not easily absorbed by human beings and easily leads to arterial blockage and thrombosis. For young children, the most direct symptoms are hearing and respiratory system damage, and it will make babies suffer from frequent urination and diabetes. Dr. Spock believes that babies should eat breast milk or nutrients such as soybean milk and rice flour paste.
Second, childhood obesity
Although dairy companies spend tens of millions of dollars bragging about the benefits of milk for weight loss and spare no effort to introduce various low-fat milk, the American Archives of Pediatrics and Adolescence Medicine published in June pointed out that children who quote milk more than three times a day are more likely to get obese, even if they consume low-fat milk. A study on1.2000 children aged 9- 12 confirmed this point. Therefore, children should drink more water instead of using milk as a drink as some parents think.
Third, excessive lactose leads to diarrhea
Milk is rich in lactose, and the normal standard of lactose content in pure fresh milk is 4.2%-5%, but these lactose can not be completely absorbed by human body. According to the data of Harvard University's Center for Public Health Research, Asians are the biggest victims of lactose excess. 90% of yellow people can't fully digest and absorb lactose in milk, and 70% of black people and 15% of hundreds of people also have such problems. Excessive lactose will cause problems such as abdominal distension and diarrhea. If you often drink milk and feel upset, then obviously you should consider eating less dairy products.
Fourth, fractures can supplement calcium for milk.
Some studies also question the idea that milk can supplement calcium to prevent and treat fractures and osteoporosis. A study on nurses' health in Harvard University involving 78,000 women for a period of 12 years showed that women who drink a lot of milk have a twice higher proportion of fractures than those who drink little or no milk. The main reason is that several kinds of protein in milk cause calcium loss. One third of calcium absorbed from milk will be discharged from urine, while two thirds of calcium absorbed from cheese will be lost. This is for singing? Milk supplements calcium? It is undoubtedly a blow to the business.
V. Inducing ovarian cancer and prostate cancer
A study completed by Karolinska Institute in Sweden shows that drinking a lot of milk will increase the incidence of ovarian cancer in women. This is the conclusion reached by scientists after investigating more than 60,000 women who drink more than 2 cups of milk every day. Long-term follow-up research shows that the incidence of ovarian cancer is twice as high for women who drink dairy products more than four times a day as for women who drink two cups of milk a day. In addition, through 196 1 year to 199 1 year/year 100 professional reports, the researchers found that prostate cancer is related to eating milk products? Most men with prostate cancer consume more milk products than healthy men.
Sixth, the harm of excessive hormones
Experts also pointed out that when people drink milk, they may not think of all the pains that cows have to endure in order to produce milk, such as artificial fertilization, abortion and injection of lactagogue hormone once a year? All this is for animals? Cruel and inhuman? . In addition, some dairy farms in California also inject cows with so-called? Empty pregnancy promoting emulsion? , so that cows can produce a lot of milk without pregnancy, and their output can reach 10 times of natural milk production.
Even without considering the feelings of cows, human beings should pay attention to the harm caused by a large number of female hormones in milk. Specifically, excessive hormones will lead to precocious puberty, male dysfunction and female infertility.
Seven, air pollution
California, the largest state of milk production in the United States, is also the most polluted place by cow farting in the United States. On August 1, this year, officials of the San Joaquin Valley city government in California announced that in order to reduce pollution, the government would make laws and regulations requiring all cows to be? Hiccup and fart hygienically? . This is nothing new. It won't be surprising if you know that there are already six children there who need to take a ventilator to school. Each cow emits 9 kilograms of waste gas every year, while there are 2.5 million cows in San Joaquin Valley, and the total amount of waste gas emitted each year has far exceeded the air pollution caused by cars, trucks or pesticides.
Eight, often drinking milk is easy to cause prostate cancer.
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 is found that eating more dairy products will increase the risk of prostate cancer in men compared with men who consume 150 mg of calcium from dairy products every day. 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.
Conclusion: The above is the knowledge I introduced to you about the advantages and disadvantages of drinking milk. Although there are many advantages of milk, we must master the correct method of drinking milk correctly, so that our bodies can absorb more protein. Remind everyone to keep in mind the disadvantages of drinking milk in the above article to avoid being hurt.