These
complex sugars are indigestible by the infant but appear to play a powerful
role in shaping an infant's gut
microbiome, the fine - tuned community
of trillions
of microbial cells that, again, scientists are only beginning to understand.
Embriette Hyde, project manager at the American Gut Project, points out that it can be very challenging to isolate the
roles of individual microbes within the «
complex tangle»
of microbiomes.