Milk is most easily absorbed in the morning for the following reasons: 1, because milk is rich in calcium, and calcium needs vitamin D to be well absorbed, if you drink milk in the morning, after the morning and afternoon outdoor activities, sunlight exposure of the skin to produce rich vitamin D, which can well promote the absorption of calcium in the milk in the morning; 2, from the perspective of Chinese medicine dietetic milk is cold, and the morning of the day is a relatively strong Yang Qi, so if you drink milk in the morning, through the strong Yang Qi can well transport the relatively cold milk.