Babies born at full term usually do not need to take vitamin D after taking vitamin AD.

Baby should start regular vitamin D supplementation at least 2 weeks after birth. The intake of 400IU should be ensured throughout the day. You can choose either vitamin AD or vitamin D3, or you can take it alternately or mix it to ensure that every day The daily vitamin D content is 400IU. The vitamin D content in vitamin AD can reach 400IU, and there is no need to supplement vitamin D.