Colostrum refers to the so-called primary milk in mammals, it is formed before birth and is the first food of the newborn. It supplies him with vitamins, minerals, trace elements, proteins, growth factors and antibodies, and thus stimulates his immunity. B vitamins and vitamin C also serve to support immunity. B vitamins, vitamins C and E contribute to the normal function of the immune system, the normal functioning of the nervous system and normal mental activity, and the reduction of fatigue and exhaustion. It is also beneficial to enrich the product with vitamin D3, which is needed for normal growth and development of bones in children, maintains normal bone condition and contributes to normal calcium absorption.