What is vitamin D3 400 IU good for: Your guide to foundational health
•
4 min read
According to the American Academy of Pediatrics, breastfed infants should receive 400 IU of liquid vitamin D daily, starting shortly after birth. This foundational dose highlights a crucial answer to what is vitamin D3 400 IU good for, especially concerning bone development and immune system support during the earliest stages of life.
