I found that since I discovered that I was lactose intollerant that I
cannot digest fats very easily...they tend to go straight through me
now. I think that the reason for this is that it took me so long to
discover the real reason for my problem and I think that there was
damaged done to the lining of my intestines. Maybe that is your problem
because I have no problems with casein just fats and lactose.

Hazel Green