M.M.
I have always been a fan of carnation Good start. I feel it is the closes thing to breast milk that you can buy. When my children were on similac and enfmail they would spit up a lot and it would stink terrible. Once I switched to carnation there spit looked and smelled like breast milk they did not get upset stomach or constipation. My newphew was on similac and was severely constipated and I told my sister in law to switch and she did with in a day in has fine and never had anymore problems all three of my children were on it.. Plus it is much cheaper than the other brands but not as cheap as the store brands.