now having done some sleuthing I found some interesting information on milk
allergies etc.
This is from the following website
http://metalab.unc.edu/london/herbs/forums/herbal/msg00039.html


Milk Allergy. This is a true allergic reaction by the body's immune system
to one or more of milk's proteins, such as casein or lactoglobulin. The
resulting symptoms typically include swelling, itching, bronchospasm, hives,
hypotension or shock, abdominal cramps and diarrhea.
The diagnosis is suggested by positive prick tests to milk or milk component
extracts or by RAST tests (not as good as prick tests). Most clinicians
would be convinced by a positive prick test for milk coupled with
improvement after avoidance of dairy foods, sometimes adding a single-blind
challenge (the doctor or nurse knows whether the patient is getting the real
milk or the placebo, but the patient does not). The gold standard for
establishing the diagnosis is a double blind placebo controlled challenge,
but few clinicians are set up to do this.

Ingredients to avoid: all listed above for Lactose Maldigestion, and casein,
sodium caseinate, etc.


Casein Intolerance. This is when the immune system of the body produces IgA
and IgG antibodies to casein, a milk protein. The community avoiding casein
are the people afflicted with autism. Casein peptides are absorbed through
the intestine and collect in the kidneys. These antibodies can be detected
with ELISA serum tests..........
http://metalab.unc.edu/london/herbs/forums/herbal/msg00039.html