om hospital. First 24 hours were wonderful in terms of pooping, then we decided to switch to Similac Organic for known reasons, but during the first 32-Ounce Bottle I began to notice that his stool was getting harder, and eventually he stopped pooing (actually he produced two stone-ball like poops) and had a hard time for another 24 hours. Breast milk and Similac advance tested similarly sweet, but Similac Organic was much much less sweet. I made a research on the internet and I found the follow