KAL® Strawberry-Kiwi Colostrum Chewables are sourced from 100% pure New Zealand colostrum. The colostrum is obtained from the cow within 48 hours of calving and processed in New Zealand under a fully implemented HACCP (Hazard Analysis Critical Control Point) program. BSE (Bovine Spongiform Encephalopathy) is not known to exist in New Zealand. Each great tasting sugar-free strawberry-kiwi chew features 20% Immunoglobulins, which includes all four of the key Immunoglobulins: IgG, IgM, IgA and secretary IgA. This concentration of nutrients is intended to provide nutritive support for general health and well-being.