Breast milk gives infants intestines a protective coat

A large part of human milk consists of complex sugars that are undigestible by babies, but American scientists have worked out that its purpose is instead to influence the composition of bacteria in the infant's gut. The researchers have found that strains of the bacterium Bifidobacterium longum infantis, commonly found in the faeces of breast-fed infants, possesses genes that enable it to thrive ...

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