Many medical experts, including the American Academy of Pediatrics (AAP) and the American College of Obstetricians and Gynecologists, strongly recommend breastfeeding exclusively (no formula, juice, or water) for at least a minimum of 6 months. And breastfeeding for the first 2 years is ideal. At age 18 months, other foods should be started such as vegetables, grains, fruits, proteins.

Breastmilk is not only perfectly designed to feed your baby, it also introduces bacteria that the baby needs in order to be able to digest harder foods later. When a child goes through the birth canal, they get many bacteria that also help their developmental health but breastmilk is key to a healthy digestive system because the bacteria in breast milk set up the right environment inside the child's digestive track,

Soy based formula is worse than other forms. Exposing infants to isoflavones by feeding them soy-based infant formula can have harmful effects.

In one study, infant girls fed soy formula had significantly more breast tissue at 2 years of age than those who were fed breast milk or dairy-based formula (40).

Another study showed that girls fed soy formula were much more likely to go through puberty at a younger age (41).

There is also evidence that soy formula during infancy can lead to a lengthening of the menstrual cycle and increased pain during menses in adulthood (42).

Soy is also very high in manganese, MUCH higher than breast milk, which may lead to neurological problems and ADHD (43, 44). Soy infant formula is also high in aluminum, which can cause all sorts of problems (45, 46).

There is no question about it... breast milk is by far the best nourishment for babies. For women who can not breastfeed, milk-based formula is a much better option than soy-based formula, which should only be used as a last resort.