Metformin's Anti-Aging Case: Strong Clues but Still No Proof
Graded Moderate — narrative review of preclinical, cohort and trial data on metformin and aging, with the human evidence largely observational and no trial yet testing aging itself.
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This review suggests metformin shows promise against aging but its effects may differ by age.
This review pulls together lab, population, and clinical trial evidence on metformin as a potential aging-slowing drug. At normal doses, metformin seems to flip several key aging switches: boosting cellular cleanup, calming inflammation, and improving energy production. Large population studies link metformin use to lower rates of age-related diseases, even in people without diabetes. However, the review honestly notes that metformin may actually worsen aging in older animals, so the picture is still mixed.
Disclaimer: Research summaries are provided for informational purposes only and do not constitute medical advice. Always consult a qualified healthcare professional before making changes to your health routine.