That is true, but so misleading that you have to get the full story here. ONLY a small part of the colostrum is actually used to improve your immunity. THAT part is called the transfer factor. It is extracted by a special process from the colostrum. Since there is a patent which greatly limits anyone's ability perform this extraction, many companies without access to that patent have started claiming immunity benefits to the colostrum itself.
Transfer factors are less than one part in a thousand of colostrum.
Colostrum is mother's milk during the first few days of breastfeeding. That is a dangerous lie. There are more than 2,000 pages of scientific studies on this web site. Babies are at risk without the transfer of the immunity from the mother. Transfer factor is a substance which is starting to revolutionize health care.