Found a new study discussing the benefits of breast feeding, it seemed relevant since we were discussing this topic the other day. Science is the greatest tool of our culture, and like any tool; sometimes it breaks. For a small period of time, Science didn't investigate breast milk versus formula until recently. While there is certainly a market for formula (sometimes mothers aren't around, or just inconvenient), but recent scientific evidence that breast feeding is reversing the trend that had been progressing for a few decades where formula is main choice of mothers.
This article shows that the microbial community that help mammals digest food in their intestines, is largely passed down through breast milk to the infant. There are more microbes in each human gut than there are humans on earth, and recent studies are showing that gene expression changes when not exposed to the genetic variation of microbes that infants are exposed to through breast milk.
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