Education only · provider review required
Metformin · Diabetes medicine, longevity conversation
A cheap, approved medicine with a large trial asking whether it slows ageing.
Medically reviewed by Bernard Garcia, MD
What it is
Metformin is FDA-approved for type 2 diabetes and is among the most prescribed medicines in the world. Observational data and the planned TAME trial have made it central to longevity discussion; whether it delays age-related disease in non-diabetic people is unproven.
How it works
Metformin lowers hepatic glucose output and improves insulin sensitivity; proposed ageing-related mechanisms include AMPK activation. Off-label use in healthy adults has trade-offs, including possible blunting of exercise adaptations in some studies.
Research status
| Research area | Status |
|---|---|
| Type 2 diabetes | FDA-approved |
| Prediabetes | Guideline-supported off-label |
| Longevity in non-diabetic adults | Unproven · TAME trial planned |
| PCOS | Off-label · commonly used |
Status reflects published research context only and is not a statement of safety, efficacy, or suitability for any person.
Is it legal?
Metformin is FDA-approved for type 2 diabetes; use for longevity is off-label. This is a general note, not legal advice.
Frequently asked questions
Should healthy people take metformin?
That is exactly the question the evidence has not answered. A provider weighs it individually.
Why is it on a peptide site?
It is researched alongside metabolic and longevity peptides, and readers ask.
Is it a peptide?
No — a small-molecule biguanide.
Next step
Next step: a 3-minute confidential intake, reviewed by a licensed provider. No treatment is promised or implied.
Free · about 10 minutes · reviewed by a licensed physician
General education · Not medical advice · Provider approval required