When does D3 eat?

Vitamin D3 supplementation for newborns can be supplemented two weeks after birth. Because vitamin D deficiency often occurs, calcium absorption decreases, vitamin D deficiency rickets is manifested, causing sweating, crying, chicken breasts, rib beads, X-legs, O-legs and other calcium deficiency. When children supplement vitamin D, the daily preventive dose of 400 units can be used. If there are symptoms of calcium deficiency, to supplement 800 units, you can adjust the dosage of vitamin D3 according to vitamin D and vitamin A, calcium levels. Vitamin D supplementation after two weeks of birth is relatively safe, lasting about two weeks, can effectively prevent vitamin D deficiency rickets.