Name an essential vitamin that may need supplementation for breastfed infants.

Vitamin D is an essential vitamin that may require supplementation for breastfed infants due to the limited amount of this vitamin found in breast milk. While breast milk is nutritionally complete, it typically does not contain adequate levels of vitamin D to meet an infant's needs, especially for bone health and overall growth. Exposure to sunlight can help the body produce vitamin D, but since many infants have limited direct sunlight exposure, particularly those living in northern latitudes or areas with high pollution, supplementation becomes necessary.

The American Academy of Pediatrics recommends that exclusively and partially breastfed infants receive a daily vitamin D supplement of 400 IU starting shortly after birth. This practice helps prevent vitamin D deficiency, which can lead to rickets, a condition characterized by weakened bones.

Essential vitamins like A, C, and B12 have their importance, but the specific recommendation regarding vitamin D supplementation for all breastfed infants highlights its unique role in preventing deficiency-related issues. Therefore, ensuring adequate vitamin D levels through supplementation is vital in infant care.