Metformin (evening)
Evening
Taking metformin, a prescription medication, sometimes off-label as a metabolic intervention. Use, timing and dosing vary and are typically overseen by a clinician.
Quick facts
- 1Metformin is a prescription diabetes drug some longevity practitioners take off-label, following signals in observational data.
- 2The TAME trial, long proposed to test metformin against aging itself, shaped the entire debate.
- 3Studies suggest metformin may blunt some exercise adaptations, the key tension for fit users.
Why people do it
The longevity hypothesis: Diabetic metformin users appeared to outlive some non-diabetic comparisons in older observational work, sparking the field's interest.
Cheap and long-studied: Decades of clinical use give it an unusually well-known safety profile for the debate it anchors.
Good to know
Prescription medicine: This is a drug with contraindications, obtained and monitored through physicians, full stop.
Exercise interaction: Trials suggest blunted training adaptations, which is why many athletic users skip it or time it away from training days.
The signal weakened: More recent analyses have softened the original longevity association considerably.
Common questions
Why evening dosing?+
Commonly for gastrointestinal tolerance and overnight glucose, per prescriber guidance, which is the operative word.
Is this something to try?+
It is something to ask a physician about, uniquely so on this site: prescription-only, with real interactions.
Takeaway
A real drug in the middle of a real scientific argument. Belongs to the doctor's-office category, documented here because public figures discuss it.
Notes from the community
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These habits are compiled from public statements and are not medical advice or endorsed by David Sinclair. Consult a qualified professional before changing your routine, supplements, or therapies.