How formula should my son be drinking? help please!!!?

Babies do not tend to over eat. His body will determine how much of what he needs as well. Don't must Mom's take their babies off formula by age one? I don't know that one, I nursed. So with nursing you never know how much they eat when they pull away your done. So I would think it would be the same with a formula feed baby. He knows what to do. If he doesn't look to thin then I'm sure he is fine. Don't worry about it.