So I was trying to breast feed my baby and dried up for some unknown reason with zero warning around week 5. It was weird. Anyhow, have been feeding her Enfamil Premium Infant formula and it seems to work great for her. We had tried the Enfamil Newborn but it was like giving her a shot of espresso with every bottle. Last night my husband and I were looking at ingredients trying to see what was so different between the 2 and we realized there was TAURINE in both! That's the crap they put in energy drinks! I had received a sample of Similac Advance Complete Nutrition in the mail some time ago and was going to try that out. I see that it's got Taurine in it also, and it's about halfway through the ingredients (with Enfamil at least it's 2nd to last ingredient). I want my baby girl to have GOOD stuff in her tummy and since I'm dried up, I wanted to know what you ladies think of what kinds of formula? Also, I am going to assume that a baby is like a dog and it's bad to just switch from one kind of food to another. Do I need to slowly start mixing in the new formula with the old and wean her off the old? Any guidance would be appreciated. Thank you girls!