Is colostrum safe for cancer patients?
Bovine colostrum contains insulin-like growth factor-1 (IGF-1). IGF-1 levels are elevated in prostate, colorectal and lung cancer. Recent studies have found that IGF-1 levels correlate with risk of prostate cancer and colorectal cancer in men, pre-menopausal breast cancer in women and lung cancer in both men and women. It is unlikely that the amount of IGF-1 in bovine colostrum would be a problem, but consulting your health care professional is advised.