Milk is the first choice of most parents for their children to prepare breakfast. They believe that children should supply calcium, and then the children can be smarter and healthier. However, they do not know if to supply calcium untimely, it is superfluous.

Yunnan Academy of Medical Sciences and Health Management Branch Director explained that drinking milk in the morning is not conducive to digestion and absorption, because the milk protein need to go through the stomach and small intestine to break down to form amino acids before being absorbed by the body. And at the morning fasting state, the stomach and intestinal emptying is very fast, so milk has no time to digest but is discharged to the large intestine. Protein in the food which is absorbed only on the basis of heat sufficient to constitute a part of human tissue, if the lack of heat, absorbed protein quickly becomes the heat and is consumed, this is a waste.

Nutrition experts believe that it is best to drink milk in the evening or before going to sleep for half an hour. Drinking milk in the morning is worse than drinking in the evening. According to medical experts of United States and Britain, they found that milk contains two kinds of hypnotic substances, one of which is serotonin synthesis tryptophan to promote sleep. Because of its role, just a gl of milk can often induce sleep; another is the effect of sedation with a similar natural morphine-like substances. So, it is more beneficial to the people’s sleep, it is good to drink milk at night and is helpful to people’s rest and sleep. However, if drinking milk in the morning, it will make people's cerebral cortex is inhibited and impact the work and study during the day.

Milk before bed will help the body absorb calcium and the elderly are particularly good to drink milk before going to sleep. This is because calcium intake in the dinner, before going to bed most is absorbed by the body. After sleep, especially after 0:00 pm, the blood calcium level will gradually decrease, because the decline in serum calcium, it promotes the hypersecretion of thyroid hormones, which acts on bone tissue, and then make part of calcium in the bone tissue dissolve into the blood to maintain blood calcium stable equilibrium. Such dissolution is the body's self-regulatory function, a long time; it will become one of the causes of osteoporosis. Drink milk before going to bed at night, the calcium in milk can change the state of the body of calcium, but also do not have to use the calcium in the bones; can maintain calcium balance, and bone will not decalcification, it will help prevent osteoporosis and fractures.


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