C.B.
My middle son had a milk allergy and the only substitute I found that worked for him was rice milk. I bought the Rice Dream enriched rice milk. It was fortified so it had the same amount of Vit D and calcium as milk. You just have to substitute the fat for brain development. I would cook his veggies in oil. When I first switched him it took about 3 days for the diarrhea to stop.