Composition of the mother’s milk I. Protein contents, amino acid composition, biological value. A review

The authors have analysed protein contents, protein fractions, free amino acid and total amino acid contents of the mother’s colostrum and mother’s milk in comparison with the newest publications. They have established that there was no united picture of the different effects on protein contents of the mother’s milk. Protein contents of the colostrum of well-nourished mothers were found 6.0%, whereas those of underfed ones 4.5%. Some argue that there is a significant positive relationship between protein contents of food and daily protein intake, as well as protein contents of the mother’s milk. Some researchers were found the protein contents of the underfed mothers’ milk to be lower, while others found no difference in true protein contents of the milk of underfed and appropriately fed mothers (0.8–1.0%), and more could not