The best time to drink milk is usually in the morning and evening, if you drink at the wrong time may lead to a waste of nutrients. After waking up in the morning, through a night of metabolism, the body needs to replenish enough nutrients, milk is rich in protein, calcium, vitamins and other nutrients, drinking in the morning is conducive to the full absorption of nutrients. Secondly, the morning sunlight is sufficient to facilitate the synthesis of vitamin D3 in the body, which can promote the better absorption of calcium in milk by the body. However, it is generally not recommended to drink milk on an empty stomach, which is not conducive to digestion and absorption, especially for people who are lactose intolerant or have a bad stomach, so you can have a glass of milk after eating breakfast. The milk before going to bed at night can help sleep, promote the growth and development of children, and for the elderly there is a preventive effect of osteoporosis. It is important to note that the choice of milk should ensure quality, to avoid shoddy products, which can damage health. Secondly, make sure that it is taken within the expiration date.