Calcium supplementation is available throughout the year, and there is no special seasonal or temporal limitation; it should be done according to the specific situation. Calcium is the most basic mineral element in the human body and also the mineral element that is most involved in the function of various organs in the human body, so calcium has a very important role for the human body, and only when the daily intake of calcium is sufficient, can we better maintain the operation of the body. Calcium supplementation is not seasonal, all seasons should actively supplement calcium, and all age groups also need, if the nutrition is balanced, calcium is still relatively abundant in food. However, there are some special groups of people, such as infants and adolescents, who need more calcium for their growth and development. Pregnant women need a lot of calcium to ensure the growth and development of fetal bones. As well as older people who experience osteoporosis or even fractures, it is even more important to take adequate calcium supplements to prevent and treat osteoporosis. Calcium supplementation should be in moderation, and should be carried out under the guidance of a professional doctor. Normally, it is also appropriate to eat more calcium-containing foods such as milk, shrimp, fish and so on.