Because water accounts for a large proportion in milk, drinking more milk on an empty stomach dilutes gastric juice, which is not conducive to the digestion and absorption of food.

In addition, on an empty stomach, the intestinal peristalsis is very fast, the speed of milk passing through the gastrointestinal tract is very fast, and the retention time is also very short. Its nutrition is often too late to be absorbed, so it rushes into the large intestine and goes through the motions. Therefore, drinking milk on an empty stomach is not in line with nutrition and hygiene.

The ideal breakfast should be a high-calorie meal in protein, and its amount should not be less than a quarter of the whole day's food intake. Therefore, it is best to drink milk during a nap or before going to bed late, so as to turn disadvantages into advantages and better play its role.

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It is reported that many people drink milk in the morning, thinking that it can completely absorb nutrition.

In fact, drinking milk on an empty stomach will soon be discharged into the large intestine through the stomach and small intestine, so that various nutrients will be excreted before digestion and absorption. The correct way should be to eat something before drinking milk. Hyperacidity leads to degeneration and precipitation of protein, and nutrients are not easily absorbed by the stomach, which can lead to indigestion and diarrhea in severe cases.

Therefore, some bread, biscuits and snacks should be accompanied by milk. It can be seen that the main reasons for not drinking milk on an empty stomach are: First, it is easy to cause diarrhea; Second, the absorption efficiency is not high. Because the time through the gastrointestinal tract is too fast. Try to drink milk after meals, which is beneficial to absorption and tolerance.