Colostrum is the Pre-milk fluid produced by mammalian mothers prior to birth. It is not milk. Colostrum contains almost no lactose, so those that are lactose intolerant should have no problems with high quality Colostrum. If concerned, you might consider taking a lactose digestive aid for the first while until the benefits of the Colostrum are achieved at which time some have reported no longer having any further lactose intolerance issues. Consumers should also make sure that products labeled Colostrum are 100% Colostrum (not Colostrum-whey or concentrates of milk-whey or Transitional-milk). And, we of course always recommend speaking to your health practitioner and offer to them the “Health Practitioners Guide” which spells out for the practitioner the benefits with references.