Colostrum is the first milk with which mammal mothers start to feed their children. Its production continues from 48 to 72 hours before the appearance of usual mother’s milk. Colostrum contains high concentration of vital growth and modulating factors for the development and maturation of immune system which are crucial for normal feeding and growth of all tissues and organs in human organism.

Colostrum formation is much more complicated than normal milk and its ingredients are not presented in such high concentrations elsewhere in nature. There are many growth factors in it but the main which are of special interest today are insulin like growth factor (IGF-1, which has a better anabolic effect than any other known up to now substance, even better than steroids and thus increases muscle mass and strength) and transforming growth factor beta (TGF –?, produced by specific cells called osteoblasts which take part in bone formation and leads to reduction of osteoclasts – cells which destroy bones.

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