KAL® Colostrum Lactoferrin dietary supplement is 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 capsule features 20% Immunoglobulins, which includes all four of the key immunoglobulins: IgG, IgM, IgA and secretary IgA. Lactoferrin from Australia & New Zealand is added to provide nutritive support for immune function and to act as a free radical scavenger in the body. This powerful combination, enhanced with Beta Glucan, is intended to provide nutritive support for general health and well-being.