what do experts agree is the best nutrition for a newborn baby? formula breast milk cows milk baby food

Brief Explanations:

Breast milk contains ideal nutrients and antibodies for newborns, making it the preferred choice among experts. Formula can be an alternative in some cases, but it lacks the unique benefits of breast milk. Cow's milk is not suitable for newborns as it is hard to digest and may cause allergic reactions. Baby - food is typically introduced later in infancy.

Answer:

breast milk