Nutrition
B12 Absorption Metformin Vegan
Vegans on metformin face stacked B12 absorption risk—clinician monitoring and supplements matter alongside fortified foods, without stopping prescribed meds.
B12 absorption on metformin plus a vegan diet stacks two risk factors: plant plates lack animal cobalamin, and long-term metformin can lower B12 uptake in the gut. Fatigue and neuropathy may reflect either issue or iron deficiency.
Do not stop prescribed diabetes medication to fix nutrition—ask your clinician about B12 monitoring and supplementation. Fortified foods help but may not overcome drug-related malabsorption.
Document doses and brands for appointments.
Common questions
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Should vegans on metformin take extra B12 without labs?
Many clinicians recommend proactive B12 support on metformin, but dose and form should follow medical advice and periodic labs—not self-selected megadoses.
Related terms
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