3 ms·
It’s far from being fully understood. The Wikipedia article isn’t accurate. Many animals including humans have been found to have B12 producing bacteria in the
by alexmingoia 6y ago
It’s far from being fully understood. The Wikipedia article isn’t accurate. Many animals including humans have been found to have B12 producing bacteria in the small intestine. B12 producing bacteria has been found in human small intestine as far back as 1980:
https://pubmed.ncbi.nlm.nih.gov/7354869/ https://pubmed.ncbi.nlm.nih.gov/7354869/