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Mobile IV therapyMetformin is the most-prescribed medication in the world for type 2 diabetes — and one of the most studied molecules in longevity science. If you've been reading the research and want a clinician to talk it through honestly, this is the page.
The story of metformin as a longevity drug starts with diabetics who lived longer than people without diabetes.
The original signal came from a now-famous 2014 paper in Diabetes, Obesity and Metabolism that compared mortality in roughly 78,000 people with type 2 diabetes on metformin to a matched cohort of people without diabetes. The diabetics on metformin lived longer than the non-diabetics. That result was unexpected, replicated, and launched the modern longevity interest in the drug.
The TAME trial (Targeting Aging with Metformin), a multi-center randomized trial designed to test whether metformin slows the development of age-related diseases in non-diabetic adults, has been working through funding and design challenges for several years. Whatever TAME ultimately shows, the off-label interest has continued, supported by mechanism: metformin activates AMPK (a master energy sensor that mimics caloric restriction at the cellular level), lowers fasting insulin, improves insulin sensitivity, alters the gut microbiome in ways that look beneficial, and reduces some markers of cellular senescence.
Metformin is also extraordinarily cheap, well-tolerated by most people, and has a 60+ year safety record. It is the kind of intervention that, even with imperfect evidence, has a strong risk-benefit profile for the right candidate.
Fasting insulin > 8, HbA1c 5.4-5.9, fasting glucose > 95, or post-meal CGM spikes > 160 mg/dL.
Parent or sibling with type 2 diabetes, especially before age 60.
Waist circumference > 35 in (women) or 40 in (men), or persistent stubborn belly fat despite normal BMI.
Generally well, but want an evidence-supported pharmacological intervention for healthspan.
From your first message to your medication arriving at your door — clinician-guided, every step.
A care team member meets with you to understand your goals, medical history, and treatment preferences. The first visit is no-cost and no-commitment — we want you to be confident before moving forward.
Connect by secure video or phone with a U.S.-licensed physician or nurse practitioner who reviews your full picture — labs, prior treatments, current medications, and lifestyle — and decides what is clinically appropriate.
If your clinician determines treatment is right for you, they issue a prescription that goes to a licensed U.S. pharmacy. We coordinate discreet shipping, or you can fill it locally. Follow-up visits are built in.
Metformin's mechanism is not as simple as old textbooks made it sound. The current understanding includes several overlapping effects:
AMPK activation. Metformin activates AMP-activated protein kinase, a cellular energy sensor that triggers fat oxidation, glucose uptake, and a shift from anabolic to catabolic metabolism. AMPK activation also inhibits mTOR signaling — relevant to the longevity discussion because mTOR is the same pathway rapamycin inhibits directly.
Reduced hepatic gluconeogenesis. Your liver makes glucose overnight; in insulin resistance it makes too much. Metformin reduces this output, lowering fasting glucose and fasting insulin.
Improved peripheral insulin sensitivity. Muscle and fat tissue become more responsive to insulin, so less insulin is needed to do the same job.
Mitochondrial effects. Metformin has subtle effects on the mitochondrial electron transport chain — partially inhibiting complex I, which is what kicks off the AMPK cascade. This is the same effect that limits maximal oxygen uptake during high-intensity exercise, which is why some athletes time their dosing carefully.
Microbiome shifts. Metformin alters gut bacteria composition in ways that appear to reduce inflammation and improve metabolic markers. Some of the drug's benefit may come from this rather than direct cellular effects.
Cellular senescence. Several studies show metformin reduces senescent cell burden in tissues — a mechanism directly relevant to aging biology.
Your clinician will review every relevant detail with you. Here are the most important points to know up front.
Metformin requires reasonable kidney function. eGFR > 45 is usually fine; below 30 it is contraindicated. Your clinician will check.
Long-term metformin use can lower B12 absorption. We check B12 at baseline and yearly, and supplement as needed.
Roughly 1 in 3 people get loose stools, nausea, or bloating in the first 2-3 weeks. Starting low, going slow, and using extended-release nearly eliminates this.
Lactic acidosis, the rare serious side effect, is essentially limited to people with significant kidney or liver impairment. Your clinician will rule this out.
All medications must be prescribed by a licensed provider based on medical necessity. Treatment is not suitable for everyone. Results may vary.
For longevity use, dosing is generally lower than diabetes use. A common protocol starts at 500 mg extended-release at dinner for 1-2 weeks, then increases to 500 mg twice daily, with possible further increase to 1000 mg twice daily based on labs and tolerance.
Some longevity clinicians prefer to stop metformin on heavy training days because of the complex I inhibition and its modest effect on VO2 max adaptation. This is a reasonable nuance for serious athletes; most members do not need to worry about it.
Most members stay on metformin indefinitely if it is working and tolerated. There is no fixed duration. The clinical question is whether it is doing what it should be doing — which is why we re-test at 90 days and annually thereafter.
Metformin is among the cheapest medications in medicine — typically $5-15/month for the generic. Program fee covers your clinician's time.
Patients served across the U.S.
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We built HealifyNow because telehealth done badly is everywhere — and telehealth done right still feels rare. Here is what makes us different.
No waiting rooms, no faxed forms, no insurance hoops. Quick consults, simple intake, prescriptions handled digitally.
Real physicians, nurse practitioners, and specialists with active licenses. Not chatbots, not offshore call centers.
Medications ship from licensed U.S. pharmacies in plain packaging. Most orders arrive in 2-5 business days.
Reach a real human seven days a week. Most messages get a clinical reply within a few hours, not days.
HealifyNow prescriptions are reviewed and authorized by independently licensed physicians — real doctors with real credentials from top medical institutions in the United States.
A board-certified physician who brings a rigorous, pharmacology-driven lens to longevity medicine and weight management.
A Columbia-trained physician and former collegiate athlete focused on metabolic function, body composition, and healthspan.
A board-certified OB-GYN and ACOG Fellow with more than four decades of experience in women's health.
Real people, real results. Names and details published with permission.
"Fasting insulin dropped from 12 to 6 in three months. Energy in the afternoon is night and day. My clinician was clear about expectations — no overpromising."
"I'd been reading about metformin for years. Getting it prescribed by someone who treated me like an adult and didn't lecture me was the whole win."
"Tolerated extended-release perfectly. CGM showed my post-meal spikes flatten within two weeks. I have my mornings back."
HealifyNow makes it easy to move forward with confidence. Here are the answers to what people ask us most.
No. Metformin is FDA-approved for type 2 diabetes. Use for healthy aging is off-label, meaning legal for a licensed clinician to prescribe but not the indication the FDA has reviewed.
Metformin is not a weight-loss drug. Some people lose 2-5 lbs over the first few months. If significant weight loss is your goal, a GLP-1 medication is the more appropriate conversation.
The evidence suggests metformin slightly blunts the gains from high-intensity exercise in untrained populations, with very small effects in trained athletes. Many serious athletes time their dosing around hard training days. For most people the effect is too small to worry about.
Fasting glucose drops within days. Fasting insulin and HbA1c shifts show up at the 6-12 week mark. Subjective energy and mental clarity changes vary by person.
The longevity case for metformin is strongest in people with some degree of insulin resistance or metabolic concern. Truly healthy young people without any metabolic signals get less obvious benefit, and that is the population where TAME-type evidence is needed.
Metformin can be used in pregnancy under specific circumstances (PCOS-related infertility, gestational diabetes) but should not be started for longevity reasons during pregnancy or while trying to conceive. Tell your clinician your plans.
Moderate alcohol is generally compatible with metformin. Heavy or binge drinking increases the risk of the rare serious side effect (lactic acidosis) and should be avoided.
Both target longevity pathways (metformin via AMPK, rapamycin via mTOR) but they work differently and are appropriate for different members. Some take both; many take one. Your clinician will discuss which fits your picture.
Book a free consultation, answer a short health questionnaire, then meet a licensed clinician by secure video or phone. If metformin for anti-aging is medically appropriate, your clinician sends the prescription to a licensed U.S. pharmacy and it ships to your door.
Yes. Telehealth prescribing is legal when a licensed clinician evaluates you first. Metformin for anti-aging is only prescribed when it's clinically appropriate, and it's filled by a licensed U.S. pharmacy.
Metformin for anti-aging is typically prescribed for adults without contraindications such as significant kidney disease; using metformin for longevity is off-label. Your clinician reviews your health history, current medications and goals before deciding whether it's right for you.
No. Care is self-pay with flat, published pricing, so you don't need insurance, referrals or prior authorizations to get started.
Your clinician reviews your medical history, current medications, past treatments and goals by secure video or phone, explains the benefits and side effects, and agrees a plan with you. Labs may be ordered if needed.
Sometimes. Depending on your history, your clinician may ask for recent results or order a lab panel before prescribing metformin for anti-aging. Lab testing can be arranged at draw sites nationwide.
Yes. Visits take place on a HIPAA-compliant platform, your records are protected, and medication ships in plain, discreet packaging.
Book a free consult to see if a low-cost, well-studied medication should be in your protocol.