Studies have suggested that bovine serum albumin is the milk protein responsible for the onset of diabetes... Patients with insulin- dependent diabetes mellitus produce antibodies to cow milk proteins that participate in the development of islet dysfunction... Taken as a whole, our findings suggest that an active response in patients with IDDM (to the bovine protein) is a feature of the autoimmune response."
New England Journal of Medicine, July 30, 1992
Antibodies to bovine beta-casein are present in over a third of IDDM patients and relatively non-existent in healthy individuals."