Bovine Colostrum

Bovine colostrum is the first milk a cow produces in the days after calving. It is richer in protein than mature milk and carries proteins such as immunoglobulin G (IgG) and lactoferrin. The catalog lists one grade, a powder standardized to 15% IgG; confirm the IgG test method on the specification, since results vary with the assay used. The dried powder is cream to pale yellow with a mild, milky taste. It is a dairy ingredient, so it carries a milk allergen declaration. The proteins are sensitive to high heat, which makes colostrum a better fit for capsules, chewable tablets and dry powder blends than for heat-treated products.