First, nutritious milk
Milk is a nearly perfect nutritional health care product, which not only contains a lot of high-quality protein, carbohydrates and human fat, but also contains sufficient nutrients such as calcium, phosphorus, potassium and magnesium, as well as a variety of nutrients such as A, D and B.
According to the investigation report of nutrient composition data, the average daily calcium intake of China people is about 400mg, and the human body must have 800~ 1000mg of calcium every day. Compared with other ingredients, milk has higher calcium content and good digestibility. Drinking milk regularly can promote the growth of children's bones and prevent osteoporosis in middle-aged and elderly people. There is a slogan "A glass of milk a day makes China people strong".
Second, many people are lactose intolerant.
Milk is rich in nutrition, and many people will have symptoms such as bloating, diarrhea and abdominal pain after drinking milk. This is because of lactose intolerance.
Milk contains lactose, but many people lack the enzyme to digest and absorb lactose. After drinking milk, a large amount of lactose cannot be dissolved, digested and absorbed, and will immediately reach the intestine. Interdependent bacteria in human intestines will use lactose to produce alcohol, which will produce a lot of gas and water, which will stimulate the stomach and intestines and cause abdominal pain and diarrhea.
In areas with developed animal husbandry and sufficient imported milk sources, there are fewer people who are lactose intolerant. However, in areas dominated by agriculture and animal husbandry, there are few dairy products in the traditional diet, and the proportion of people who are lactose intolerant is high.
Third, it is not recommended to practice "appetite"
Lactose intolerance occurs with slow growth. Because after all, everyone grew up drinking milk when they were born. With the decrease of dairy products in the diet after weaning, the total number and activity of lactase will decrease, and lactose intolerance will occur when drinking milk again.
Some people may ask, because drinking less milk leads to lactose intolerance, when can we practice "food intake" again after drinking so much milk? It is not recommended to do that, because the decrease and increase of lactase is an extremely slow whole process. It is unrealistic to practice "appetite" for abdominal pain and diarrhea. Frequent diarrhea may also lead to intestinal bacterial confusion, leading to more serious intractable diarrhea or severe constipation.
Fourth, how to drink milk healthily
Some people have diarrhea only when they drink milk on an empty stomach, but it is no problem to drink milk after meals. This is because on an empty stomach, milk will quickly enter the intestine, causing intolerance and diarrhea. Drinking milk after meals will mix ingredients, increase the residence time in the colon and make the lactose dissolve for a longer time.
People who are lactose intolerant can choose dairy products such as milk and cheese. This dairy product uses flora to ferment milk and convert lactose into lactic acid, which not only improves the taste, but also prevents the harm of lactose, and almost retains all the nutrients in milk.
You can also choose lactose-free milk. Many famous milk brands have developed and designed lactose-free milk. In the production process, lactose in milk is hydrolyzed into galactose and glucose water, which can prevent lactose intolerance and improve the taste of milk.