Bacteria Help Infants Digest Milk More Effectively Than Adults

http://www.sciencedaily.com/releases/2010/11/101122121709.htm

ScienceDaily (Nov. 24, 2010) — Infants are more efficient at digesting and utilizing nutritional components of milk than adults due to a difference in the strains of bacteria that dominate their digestive tracts.

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The results of this study suggest that B. longum has at least 2 distinct subspecies: B. longum subsp. infantis, adapted to ultilize milk carbon and found primarily in the digestive tract of children, and B. longum subsp. longum, specialized for plant-derived carbon metabolism and associated with the adult digestive tract.

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