My baby is 4 months old and I introduced similac advanced formula when he was 3 months. But I found it he can now stay up to 4 days without passing st
And by WHO.

That been said, formula fed babies are to be given water. Always ensure that the formula scoops is mixed with the right quantity of water as directed on the pack and their is need to also give plain water after formula feeding to avoid constipation. If you have not been giving water, please do.
Exclusive breastfeeding is the best for your baby in the first 6 months as we always advocate here