1, leading to calcium deficiency
Milk is known to have the effect of calcium, pure milk in the calcium content is very high, but the content of phosphorus is higher, which is the main difference between milk and breast milk, phosphorus and calcium inhibit each other, drink too much pure milk can't make up for the effect of calcium, but it will lead to calcium deficiency. Especially the elderly, there is a great possibility of aggravating osteoporosis.
2, skin allergies
Pure milk contains a lot of proteins, some people show allergies to milk proteins, this phenomenon with the prolongation of drinking pure milk and aggravation, but also some people have been immunity to the poor, drink pure milk drink more cases are prone to skin allergies.
3, indigestion
Milk protein content is extremely high in the consumption of good gastrointestinal function digestion and absorption, the body of lactase, protease consumption is relatively large, long time to eat may affect the person's digestive function.
4, how much per day
Pure milk can be drunk within 300ml per day.
Pure milk is extremely rich in nutrients, but it is not suitable for more food, daily consumption of 300 ml or less, it is recommended to drink 100 ml in the morning and evening, not only to supplement the body nutrients, but also to avoid too much drinking side effects.
5, Note
1. Pure milk will be broken down into lactose after consumption, requiring a large number of lactase to metabolize, therefore, drinking pure milk can not be too much, so as not to cause lactose intolerance phenomenon.
2. Pure milk will produce gas after consumption, therefore, gastrointestinal ulcers, flatulence is not suitable for people to drink, so as not to aggravate the symptoms.
6, infant attention
(1) the thicker the milk, the better
The thicker the milk is more milk powder in the milk and less water, so that the concentration of milk exceeds the normal proportion of standards. Some people are afraid that fresh milk is too light, they will add milk powder in it. Because of the delicate organs of infants and young children, often eat too thick milk, will cause diarrhea, constipation, loss of appetite, and even refused to eat, but also cause acute hemorrhagic enteritis.
(2) the more sugar the better
Sugar is to increase the calories supplied by carbohydrates, but must be rationed, generally 5-8 grams of sugar per 100 milliliters of milk.
What is the best sugar to add to milk? The best is sucrose. Sucrose into the digestive tract by the digestive juices decomposition, into glucose is absorbed by the body. Glucose is low in sweetness, and it's easy to go over the limit if you use too much of it.
There is also the question of when to add sugar. Add sugar and milk together and heat it up so that the lysine in the milk will react with the sugar at high temperatures (80°C to 100°C) to produce the harmful substance glycosyl lysine. Not only will this substance not be absorbed by the body, but it will also be hazardous to health. Therefore, you should first boil the milk to warm (40 ℃ ~ 50 ℃) when the sugar into the milk to dissolve.
(3) Milk and chocolate
Liquid milk and chocolate will make the calcium in milk and chocolate oxalic acid in the chemical reaction, generating "calcium oxalate". As a result, calcium, which has nutritional value, becomes harmful to the human body, leading to calcium deficiency, diarrhea, delayed development of children and adolescents, dry hair, easy to fracture, as well as increase the incidence of urinary tract stones, and so on.
(4) Milk medication is a twofer
Milk can significantly affect the body's absorption rate of the drug, so that the concentration of the drug in the blood than the same time non-milk medication is significantly lower. With milk medication is also easy to make the drug show the formation of a covering film, so that the milk of calcium and magnesium and other mineral ions and drugs in the chemical reaction, the generation of non-water-soluble substances, which not only reduces the efficacy of the drug, but also may cause harm to the body. Therefore, it is best not to drink milk before and after taking medication for 1 to 2 hours each.
(5) Feeding babies with yogurt
Yogurt is a healthy drink that helps with digestion, and some parents commonly feed their babies with yogurt. However, the antibiotics generated by the lactic acid bacteria in yogurt, although it can inhibit the growth of many pathogenic bacteria, but at the same time, it also destroys the conditions for the growth of normal flora beneficial to the human body, and also affects the normal digestive function, especially infants and premature babies suffering from gastroenteritis, if they are fed with yogurt, it may cause vomiting and gangrenous enteritis.
(6) add orange juice or lemon juice in milk to increase the flavor
Orange juice and lemon are high fruit acid fruit, and fruit acid meets the protein in milk, it will make the protein denaturation, thus reducing the nutritional value of protein.
(7) Add rice soup and rice in milk
Milk contains vitamin A, while rice soup and rice are mainly based on starch, they contain fat oxidizing enzyme, which will destroy vitamin A. Children, especially infants, if the intake of vitamin A is insufficient, it will make the infants and children stunted, frail and sick. Therefore, even for supplemental nutrition, the two should be consumed separately.
(8) Milk must be boiled
Usually, the temperature requirement for milk sterilization is not very high, 3 minutes at 70 ℃ and 6 minutes at 60 ℃. If boiled, the temperature reaches 100 ℃, the milk in the lactose will be caramelized, and caramel can induce cancer. Secondly, the calcium in the milk after boiling will appear phosphate precipitation phenomenon, thus reducing the nutritional value of milk.
(9) Bottled milk in the sun, can increase vitamin D
Bottled milk into the sun, the milk may get some vitamin D, but lost vitamin B1, vitamin B2 and vitamin C. Because of these three nutrients will be decomposed in sunlight, so that some or all of them are lost; and, in the sun lactose will be fermented. Lactose ferments in sunlight, spoiling the milk.
(10) condensed milk instead of milk
Condensed milk is a milk product, is the fresh milk evaporated to the original capacity of 2/5, and then add 40% of the cane sugar canned. Some people are influenced by the idea that "whatever is concentrated is essential" and use condensed milk instead of cow's milk. This is obviously wrong. Condensed milk is too sweet and must be diluted with 5 to 8 times water. However, when the sweetness meets the requirements, the concentration of protein and fat is often reduced by half compared to fresh milk. If you add water to condensed milk, so that the concentration of protein and fat close to fresh milk, then the sugar content will be high again.