Drink whole milk

Ca

My 12 month old will not drink milk. He has had a severe cow milk allergy and has been on Amino Acid formula since he was 8 weeks old. I have tried mixing it with his formula and he refuses it. He has had no reactions to the milk so the allergy is gone. I’ve tried stoping cold turkey and just drink whole milk and he was totally fine with just drinking his water. Anyone have any ideas???