Breast milk is easier to digest and helps protect the intestinal tract from inflammation and leakage, which in turn prevents undigested proteins from causing allergic reactions. (childdevelopmentinfo.com)
Excesses of them radically increase risk of cancer and heart disease and auto - immune conditions, due to fragments of undigested proteins floating in the bloodstream en masse, far more than the body can metabolize. (greensmoothiegirl.com)
I'd read that poor stomach acid hinders protein digestion, thus allowing undigested protein to enter into the bloodstream making it acidic. (hairlossrevolution.com)