A child has until the age of two-and-a-half to establish healthy gut bacteria -- with little change after this point, new research has revealed. The study also reinforced the important role breastfeeding plays in providing good gut bacteria to babies during the early stages of their life.

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A child has until the age of two-and-a-half to establish healthy gut bacteria -- with little change after this point, new research has revealed. The study also reinforced the important role breastfeeding plays in providing good gut bacteria to babies during the early stages of their life.