I still put about 2 - 3 ounces of formula so he has the taste and the vitamins @amaperalta03,

@mikey_boy9816, so did you just switch and went straight to whole milk completely? Or are you doing both breastmilk/formula and whole milk ?

Yup my son drinks organic whole milk too and he hasn't any problems either

I babysat for a family who did so with both of their youngest ones but with whole milk. They were healthy and had no issues with it that I know.