Milk is easy to digest and absorb, with rich nutrition, protein content of 3% ~ 4%, and contains all essential amino acids for human body. In addition, the absorption rate of milk protein in milk is very high, generally reaching about 97%. Milk contains about 3.5% milk fat, which is an edible fat with high digestibility. When the lactose contained in milk is digested and absorbed by the human body, it can be converted into one molecule of glucose and one molecule of galactose, and it can also promote the growth of beneficial lactic acid bacteria in the intestine. The growth of lactic acid bacteria is beneficial to the absorption of calcium and other minerals by the elderly and plays a positive role in the prevention and treatment of osteoporosis.
Milk contains many minerals, especially calcium and phosphorus. Milk contains a variety of vitamins needed by the human body, which play a very important role in keeping the health of the elderly, preventing diseases and promoting the absorption of calcium.
Compared with milk, the content of protein in soybean milk is similar, but the vitamin B2 is only 1/3 of that in milk. The contents of niacin, vitamin A and vitamin C in soybean milk are zero. Although the iron content is high, it is not easily absorbed by human body, and the calcium content is only half of that in milk.
However, milk with 1 kilocalorie contains 183 mg of cholesterol, while soy milk contains no cholesterol and is low in saturated fatty acids. That is to say, drinking soy milk is more conducive to preventing cardiovascular and cerebrovascular diseases than drinking milk. However, if soy milk is completely used instead of milk, the nutrients needed by the elderly such as calcium, vitamin A, vitamin D, vitamin B, vitamin C and niacin will be reduced. Therefore, the elderly should always drink milk.
However, milk also has a disadvantage, which is that it contains a lot of lactose. Middle-aged and elderly people with chronic digestive tract ulcer, chronic enteritis or gastrointestinal dysfunction have poor tolerance to lactose, and drinking milk often causes diarrhea, so they should not drink more milk, but should drink soy milk often. Eleven benefits of using milk every day
1 There will be potassium in milk, which can keep the arterial vascular area stable when blood pressure is high and reduce the risk of stroke by half.
2 can prevent people from absorbing toxic metals and cadmium in food.
3 yogurt and skim milk can enhance immune function and prevent the growth of tumor cells.
4 Tyrosine in milk can promote the growth of serotonin, a happy hormone.
5 The iodine, zinc and neighboring substances in milk can greatly improve the working efficiency of the brain
6 The iron, copper and vitamin A in milk have a cosmetic effect, making the skin smooth and full.
7 milk is rich in calcium, which can strengthen bones and teeth, and reduce bone atrophy by half. Drinking one liter of milk every day can make up 8% of the daily calcium requirement, and it is not necessary to supplement calcium if you drink milk frequently.
8 Magnesium in milk makes the heart and nervous system fatigue-resistant.
9 Zinc in milk can promote wound healing faster.
1 Vitamin B2 in milk can improve eyesight.
11 Drinking milk often can prevent arteriosclerosis.
Milk has a hypnotic and sedative effect. Morning is the time when people study and work energetically. Drinking milk makes people feel 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 traces of morphine substances, 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 by sticking to the stomach wall, and calcium in milk can also remove tension.
Drinking milk before going to bed is beneficial to the absorption and utilization of calcium. Most of the calcium ingested at dinner is absorbed and utilized by the human body before going to bed. After sleep, especially after midnight, the level of calcium in blood will gradually decrease, and the decrease of blood calcium will promote hyperparathyroidism. Hormones will act on bone tissue, so that part of calcium in bone tissue will be dissolved into blood to maintain the stable balance of blood calcium. This dissolution is a self-regulating function of human body, which will become one of the causes of osteoporosis after a long time. Drink milk before going to bed at night, the calcium in milk can be slowly absorbed by the blood, and the blood calcium can be supplemented and maintained in balance all night, so it is not necessary to dissolve the calcium in bones, which prevents bone loss and osteoporosis, so it is good to drink milk before going to bed.