The doctors and hospitals all push the similac brand on you because thats what the government pays for and I think doctors get a commission out of it or something. They tried my little one on all the different similac and he could not handle any of them,they made him deathly ill, just like the rest of my family. So I told them that and they still decided to put him on pills instead of just changing his milk. I changed his milk over to nestle goodstart without the advice of his doctor and he is now completely well.