J.M.
With my daughter I gave her half formula and half milk for a while. Then I kept increasing the milk until there was no formula. This worked and I never monitored how many sippy cups my daughter was having with whole milk. She loved milk and as long as she wanted whole milk I gave it to her to drink. She started off by having a sippy cup all day and sipping on it throughout the day and then at night she had to have a sippy cup full of milk. She always ate her food so we never put a stop to it. Today she is a healthy happy 6 year old with no teeth problems, weight problems, or eating problems. So good luck! Now my second one never wanted a sippy cup and hated milk so we never had to go through that. She went from bottle to drinnking out a cup. And now our third girl is due any day now so who knows.