Urolithin A for longevity

At a Glance

Mechanism of Action

Selectively induces mitophagy via PINK1/Parkin and mitochondrial biogenesis; improves muscle mitochondrial bioenergetics in aged tissue.

Urolithin A is typically taken orally as capsule (mitopure / synthetic urolithin a is most-studied), morning, with or without food. Selectively induces mitophagy via PINK1/Parkin and mitochondrial biogenesis; improves muscle mitochondrial bioenergetics in aged tissue. Effective range is 250 mg – 1,000 mg, with 500 mg AM being the most-studied dose. It does not require food, and fasted dosing is often preferred for absorption or timing reasons.

Dosage & Timing

Morning or pre-training dosing aligns Urolithin A with circadian cortisol rise and training demand. This maximises subjective energy effects and avoids sleep interference.

How to Take

1. Start at the lower end of the range (250 mg ) for the first 7–10 days to gauge tolerance.
2. Titrate up to the target dose of 500 mg AM once tolerance is confirmed.
3. Fasted or with a light snack is acceptable — food is not required.
4. Best timing: Morning, with or without food. Keep the daily window consistent so effects are legible against baseline.
5. Missed dose: skip and resume normally; never double up.

Absorption & Bioavailability

• Absorption for Urolithin A is generally reliable at 500 mg AM; splitting the daily dose into two smaller servings can smooth plasma concentrations.
• Hydrate adequately — most oral supplements are absorbed better when total daily water intake is above 30 ml/kg.

Cycling & Stacking Strategy

• Most users run Urolithin A continuously and reassess every 12 weeks with bloods and a symptom log.
• If effect plateaus, a 2–4 week wash-out often restores responsiveness by resetting receptor sensitivity and feedback loops.
• Common stack: Creatine monohydrate, Omega-3, NMN. Introduce one addition at a time so you can attribute effect and side effect.
• Rotate related supplements seasonally rather than layering five products in the same category.

Who This Is For

What to Monitor

Reported Benefits

• Improved muscle endurance in middle-aged adults (RCT)
• Mitochondrial gene expression upregulation
• Reduced inflammatory markers
• Potential cartilage and joint support

Safety Profile

How to Choose a Quality Product

• Third-party tested — look for NSF, Informed Sport, USP or an equivalent independent COA (certificate of analysis) on the batch you're buying.
• Standardised active — the label should specify the exact active compound and its concentration, not just the botanical name.
• Minimal excipients — avoid unnecessary fillers, artificial colours and shared allergens (soy, gluten) unless you're happy to test for reactions.
• Dose per serving matches the researched range (250 mg – 1,000 mg) — many consumer products under-dose to widen margins.
• Manufactured in a cGMP-certified facility with a clear country of origin.
• Reasonable price per effective dose — cheaper products often deliver less active per capsule, so the true cost-per-dose is higher.

Common Mistakes

• Under-dosing — using 250 mg when the research uses 500 mg AM.
• Stopping after two weeks — most longevity-relevant endpoints need 8–12 weeks of consistent dosing before they move on bloods.
• No baseline labs, so any effect is attributed to placebo or hype rather than to the supplement.
• Stacking three or four new products in the same month — you lose all ability to attribute results.
• Buying the cheapest brand and skipping the third-party COA — potency and purity vary dramatically between manufacturers.
• Timing it inconsistently — the biological effect depends on steady exposure, not sporadic doses.

Evidence Grade — B (71/100)

Grade B — mechanism is credible and at least one human trial, pharmacokinetic study or strong observational evidence exists. Long-term effects on healthspan endpoints are still incomplete.

The primary references used to grade Urolithin A are listed below. Cross-check against the current literature and expect the grade to move as new human trials publish.

References

1. [1]Urolithin A improves muscle strength, exercise performance, and biomarkers of mitochondrial health — Cell Reports Medicine, 2022

Further reading: Research library → · Protocols →