how long does a baby stay on formula
1 In the early weeks, newborns should nurse about 8-12 times every 24 hours, usually for about 10-15 minutes on each breast.  Breast milk alone is the ideal food for the first 6 months of life. If you wean your baby before 12 months of age, give an iron-fortified formula. The formula should be iron-fortified to prevent anemia (low blood count). Don't start cow's milk until your child is one year old. Cow's milk does not have the vitamins babies need.