Diagnosis and Treatment of Lactose Intolerance in Children and Adults: What Has Changed during the Past 50 Years

Breastfeeding is essential for the life of the mammal on this planet. From the first weeks after birth, mother's milk provides the child's body with the necessary macro-and microelements, vitamins, and proteins. It contributes to the formation of immunity and supplies the necessary environment for the formation of the future gut microbiota. To preserve the energy of the body, the mechanism of breaking the trophic bond between the mother and her children has been evolutionarily developed. Genetically determined processes lead to a transition from milk feeding to other nutrition methods. Even after that, animal milk continues to be part of the human diet. We analyzed different views on the problem of Lactose Intolerance found during the last 50 years to evaluate the significance of milk in the daily human diet as well as to study the correctful microbial composition of the human intestine against lactose intolerance.