Why should I not drink milk on an empty stomach?

Milk is rich in nutrition, but if you drink it on an empty stomach, as most of the milk is water, it will dilute the gastric juice and affect its digestion and absorption.

In addition, milk is liquid and has a short retention time in the gastrointestinal tract, making it difficult for nutrients to be fully absorbed, so it is best to consume bread, cookies and other foods with milk at the same time.

Milk has a substance that makes people feel tired - tryptophan, which has a sedative effect on the body. 

If you drink a glass of milk in the morning on an empty stomach, it may make you feel fatigued in the morning, thus affecting your work and study during the day.

A glass of milk before going to bed can supplement nutrition, promote sleep and ensure adequate rest, especially for people with neurasthenia and poor sleep has a significant effect.