Usually, people are used to drinking milk in the morning, but from the point of view of giving full play to the nutritional function of milk and getting the maximum benefit, this is not the best feeding time. Because growth hormone has the greatest influence on human growth and development, especially for teenagers and children, growth hormone plays a decisive role in development.

From the experiment of regularly detecting the concentration of growth hormone in plasma, it is found that the plasma concentration is slightly higher 3 ~ 4 hours after meals every day, and the concentration is low most of the time. However, after deep sleep 1 hour, both children and adults will have a peak concentration: the content of growth hormone is the highest, which is particularly obvious in adolescence. At this time, the body's anabolism is vigorous, and bones, muscles and internal organs grow rapidly, so the best time for teenagers and children to drink milk is at night before going to bed. Therefore, put the milk in the morning before going to bed at night to make full use of the nutritional value of milk, so that teenagers and children can develop better and be more fit.

Milk also has the effect of nourishing skin, maintaining beauty and preserving beauty for young people and middle-aged and elderly people. Because the time of human skin cell division is very special, it is limited to night. In other words, the renewal of human cells and the generation of new cells are carried out during human sleep. Therefore, drinking milk before going to bed can not only ensure that the skin has enough nutrients, but also help the skin's metabolism, create more new cells, make the skin look fit, shiny and elastic, and also delay aging and stay young.