I'm sure you've heard about the difference between a breast fed baby and one fed on formula from cow's milk. God made sure that a mother's milk would be the best thing for her baby to be nourished on during it's growing years. You can find many articles of how breast milk is considered best used than formula for infants. I've seen some mother's loose that bond between her and her baby because of using bottles, rather than breast feeding. Actually if you look at the benefits, you will see that you don't have as much work, and it's already warm.