Calcium supplementation for babies is a topic of great concern. Many mothers have heard that “babies born in winter are prone to calcium deficiency due to lack of sunlight”. Is this correct? If this is true, then how to give babies calcium supplements scientifically? Due to the large temperature difference between indoor and outdoor, babies born in winter have a much higher chance of catching a cold. In addition, the short sunshine hours in winter, coupled with the cold weather makes babies less outdoor activities, babies rarely get the sun, receiving insufficient sunshine easily lead to the lack of vitamin D aggravate the situation, which affects the body’s calcium content. Therefore, winter is indeed the season of calcium deficiency for babies. In order to avoid calcium deficiency in babies, it is best to pay attention to the appropriate amount of calcium and vitamin D supplementation for babies. In winter weather without wind, after 10:00 a.m., parents may wish to take their children outdoors to bathe in sunlight, half an hour to an hour a day can be. It should be noted that most of the ultraviolet rays in the sunlight can not penetrate the glass, so if the sunshine through the glass to supplement the effect of calcium will be greatly reduced. It is recommended that babies sunbathe with as much bare skin as possible in order to increase vitamin D synthesis. 0-3 years old baby’s diet to milk-based, and gradually transitioned to cereals-based. When babies are 4-6 months old, they start to add complementary foods, and daily attention should be paid to the appropriate more to the baby to supplement dairy products, small shrimp, fish and other calcium-rich foods. However, the winter sunshine is often insufficient, and the human body can not synthesize calcium, must rely on the external supply, so to give the baby to supplement the appropriate calcium is also a good choice. Babies under 3 years of age have a low concentration of stomach acid and may choose to take calcium supplements if they are recognized to be deficient in calcium. Theoretically, it is appropriate for infants to take 300mg of supplemental supplements per day, which is more effective when combined with the intake of 100 International Units of Vitamin VD3, which can effectively promote calcium absorption. It should be noted that the newborn taste buds are weak, is in a period of rapid development, the choice of calcium supplement products preferred light milk flavor. This is because if the calcium is too sweet will make the baby sweet, which will be too heavy on the taste stimulation, can cause infants taste buds slow response, easy to appear partiality, picky eaters and other bad eating habits. So when choosing calcium supplements for your baby, not only should you pay attention to its safety, calcium content, but also should be combined with the development of his taste buds, do not choose too heavy taste calcium supplements.