V.T.
I have a "baby" who is now 19 months old. She was nursed exclusively until she was 4 1/2 months old and then demanded more food. Since I waited too late to introduce the bottle, she never took a bottle. Supplementing with formula in a bottle was not an option. Even though I still nursed her, my daughter got MOST of her calories from the time she was 4 1/2 months until 9 months from cereals, veggies, and stage 1, 2, and 3 foods. My daughter always remained in the 90th percentile. In her 9th month my daughter took a sippy cup and drank soy formula from 9 months until the end of her 12 month. I think every baby and situation is different. I think larger babies need more food than smaller and average size babies. YOU know your baby the best. :)