Open access
Aug 2026
High dietary B12 is associated with reduced gut microbial B12 biosynthesis capacity and lower fecal short-chain fatty acids in healthy United States adults
ABSTRACT Vitamin B12 is acquired through the consumption of animal-source foods and supplements. In animal models, interventions with B12 and/or methionine influence fecal short-chain fatty acid (SCFA) concentration. Yet the relevance of dietary B12 to microbially produced SCFAs in humans is unknown. This study determi...
Margaret A Hilliard, Andrew Oliver, S. Wilson et al.
· Gut microbes · 0 citations