The colostrum in this product is from cows which are not only the only animals able to transfer their colostrum beneficially to other species, but their colostrum contains four times as much immune factors as human colostrum.Colostrum contains immunoglobulins IgG, IgM, IgD, IgE, IgA and Secretory IgA. It also contains cytokines such as Interleukin 1 & 6, tumor necrosis factor, Gamma Interferon, le