Metformin, commonly prescribed for type 2 diabetes, is known to reduce B12 absorption over time, as highlighted in MHRA safety updates
Age-induced diminution of free radical scavenging capacity in bee pollens and the contribution of constituent flavonoids
Because absorption is limited, raising serum B12 with pills is a gradual, cumulative process that can take weeks or months of consistent daily use
That said, the right approach depends on your personal health history, current symptoms, and medical needs
The ban is appropriate for these peptides that have no data and all sorts of concerns regarding safety, said Dr Eric Topol, director and founder of the Scripps Research Translational Institute and author of Super Agers: An Evidence-Based Approach to Longevity