High dietary B(12) is associated with reduced gut microbial B(12) biosynthesis capacity and lower fecal short-chain fatty acids in healthy United States adults. (tandfonline.com)

Authors: Hilliard MA … G Lemay D Journal: Gut Microbes Published: 2026-08-21 DOI: https://doi.org/10.1080/19490976.2026.2718567