Colostrum contains more than 90 immune-enhancing nutrients, including the natural immunoglobulins IgG and IgA. Supplementing with freeze-dried bovine colostrum may be beneficial for dogs with food or seasonal allergies because it contains an ingredient called proline-rich polypeptide (PRP).
Studies and research on bovine colostrum indicate that PRP may stimulate an immune system. More importantly, it can counteract an overactive system resulting from autoimmune disorders and allergic reactions.