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WEDNESDAY, June 12, 2024 (HealthDay News) -- Dads appear to make a small but important contribution to a newborn baby’s gut health, a new study discovers. Many microbes found in babies throughout their first year of life originate in the father rather than the mother, researchers report June 12 in the journal Cell Host & Microbe . Most importantly, these include Bifidobacterium longum strains – a bacteria that aids in the digestion of a mother’s milk.

“The role of the father may be small, but it is not to be neglected,” said lead researcher Willem de Vos , a professor of microbiology with Wageningen University in The Netherlands. “It is likely that the same holds for others who have close contact with the newborn.” Babies are born without any microbes in their GI tract, researchers explained.



They receive these important and beneficial microbes during and shortly after birth. It’s well-known that babies receive a substantial amount of microbes from their mothers during vaginal delivery. In fact, about half of the bacterial strains found in a baby’s gut can be traced to their moms.

That led researchers to consider how other people who have close contact with an infant could contribute to the other half of their gut microbiome, providing a stable source of healthy microbial strains necessary for good health. “This highlights the importance of studying other microbial contributions as well, such as those from siblings and from daycare peers,” said researche.

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