Urolithin A for Biohackers: Dosing, Stacking & Protocols

Biohackers were early to urolithin A for a reason: it targets a specific, measurable aging process — mitochondrial quality — through a mechanism you can actually name. This is a practical, evidence-grounded protocol guide: dosing, stacking, timing, and tracking, with the hype stripped out and the limitations left in.

Why urolithin A earns a place in a serious stack

Most longevity supplements are sold on association: a compound is low in old animals, so raising it is assumed to help. Urolithin A is more interesting because it acts on a defined pathway. It is a gut postbiotic your microbiome produces from ellagitannins in pomegranates, walnuts, and berries, and its primary mechanism is mitophagy — the selective recycling of damaged, worn-out mitochondria so the cell can replace them with healthy ones. Mitophagy declines with age, and dysfunctional mitochondria are a recognized hallmark of aging. Supporting the clean-up process is a mechanistically coherent target, which is exactly the kind of lever a rigorous self-experimenter looks for.

There is also a conversion problem that makes supplementation rational rather than redundant. Only some people carry the gut bacteria needed to convert dietary ellagitannins into urolithin A efficiently — estimates suggest a large fraction of people are poor converters. That means eating pomegranates is an unreliable delivery system, and taking urolithin A directly bypasses the microbiome lottery entirely. For a biohacker who values dose control and reproducibility, that predictability is the whole point.

Dosing: what the human trials actually used

The clinically studied range is 500 to 1,000 mg per day, and the human data map cleanly onto those two doses. The first-in-human study (Andreux et al., 2019, Nature Metabolism) established that urolithin A was safe and well tolerated at doses up to 1,000 mg per day and produced a mitochondrial gene-expression signature in muscle. The 2022 trial in middle-aged adults (Singh et al., Cell Reports Medicine) directly compared 500 mg and 1,000 mg arms and reported support for muscle strength and aspects of exercise performance — useful because it tells you the top of the range is where the more complete effects showed up. A 2022 trial in older adults (Liu, D'Amico et al., JAMA Network Open) ran roughly four months and supported muscle endurance, measured as contractions before fatigue.

For most people optimizing for the mitochondrial and muscle outcomes that have actually been measured, 1,000 mg per day is a defensible target: it is the top of the studied range and the dose used across the safety and efficacy work. It is not a threshold to exceed. There is no human evidence that more than 1,000 mg per day does more, and "biohacking" a compound past its studied range is guessing, not optimizing.

Timing and consistency

Urolithin A is fat-soluble, so taking it with a meal that contains some fat is a reasonable way to support absorption. Unlike a stimulant, its effects are cumulative rather than acute — the trials that showed benefits ran for weeks to months of daily use, not single doses. That has two practical implications. First, timing within the day matters far less than not missing days; anchor it to a daily meal you never skip. Second, judge it on a multi-week horizon. The Nature Aging 2025 trial that reported support for immune-cell mitochondrial health in midlife adults ran about 28 days, and the muscle trials ran roughly four months, so a fair personal trial is at least 8 to 12 weeks of uninterrupted daily use.

Stacking: what pairs logically, and what the evidence says

NAD+ precursors (NMN and NR)

Urolithin A and NAD+ precursors like NMN and NR are the two pillars of most mitochondrial-focused longevity stacks, and they are mechanistically complementary rather than redundant: NAD+ precursors aim to support the coenzyme that mitochondria use to produce energy, while urolithin A aims to improve mitochondrial quality by clearing the damaged units. There is a genuine logic to pairing a fuel-side input with a quality-control input. Be clear-eyed about the evidence, though: NMN and NR have their own human trials, but results on hard longevity or performance outcomes remain mixed and debated, and NMN in particular has faced regulatory uncertainty in the United States. There is no human trial proving the urolithin A plus NAD-precursor combination outperforms either alone — that pairing is a reasoned hypothesis, not a demonstrated result.

Creatine

Creatine monohydrate is the highest-evidence performance supplement in existence and stacks cleanly with urolithin A because they work on different parts of the energy system — creatine on rapid ATP regeneration, urolithin A on mitochondrial quality. For anyone training, this is arguably the most defensible pairing of the three: both are well tolerated, and creatine's benefits for strength and lean mass are among the best documented in the field. A typical dose is 3 to 5 grams per day.

Omega-3s, protein, and the basics

The most overlooked "stack" is the foundation: adequate protein to support muscle, omega-3 fatty acids, sufficient sleep, zone-2 and resistance training, and correcting any deficiencies (vitamin D, B12) via testing. Training is itself one of the strongest known stimulators of mitophagy, so a urolithin A protocol layered on top of consistent exercise is working with the body's own machinery rather than trying to replace it.

Tracking: how to run a real n-of-1

The point of biohacking is measurement, so treat a urolithin A trial like an experiment. Change one variable at a time — adding three new compounds at once tells you nothing about which did what. Establish a baseline for a couple of weeks before starting, then hold the dose steady for 8 to 12 weeks. Track outcomes that connect to the measured mechanisms rather than vague "vibes": strength or reps at a fixed load, time-to-fatigue on a repeatable effort, VO2 or heart-rate metrics from a wearable, recovery scores, and how you perform on your hardest training days. If you have access to lab work, markers of inflammation and metabolic health followed over time can add signal, though single readings are noisy. Keep a simple log; memory is a poor instrument.

Two honest cautions. First, the placebo effect is powerful in self-experiments, which is why fixed, objective outcomes beat subjective impressions. Second, the human urolithin A literature, while real, is still emerging: a 2024 systematic review in Ageing Research Reviews concluded the trials so far are short and modest in size. Areas like skin, gut, brain, and heart are at an early, largely preclinical stage of exploration — interesting, but not yet human-proven — and the foundational mitophagy-and-lifespan findings from Ryu et al. (2016, Nature Medicine) come from worms and rodents, so they are mechanism, not a promise for people.

Safety and honest limitations

Across the human trials, urolithin A has been well tolerated at doses up to 1,000 mg per day, with no serious safety signals reported in those studies. That said, this is a supplement to support mitochondrial and muscle function, not a treatment for any disease, and it is not a license to skip fundamentals or medical care. If you take medications, are pregnant or breastfeeding, or have a health condition, clear any new supplement with your doctor first — that is basic protocol hygiene, not an afterthought. And if you are chasing a symptom, energy crashes, or performance decline that has an underlying cause, see a clinician rather than stacking your way around it.

A defensible starting protocol

Putting it together for a training-focused self-experimenter: urolithin A at 1,000 mg per day with a fat-containing meal, taken daily and consistently; creatine at 3 to 5 grams per day; the training and protein foundation locked in; and an optional NAD+ precursor only if you have decided its own evidence base is worth it to you. Baseline for two weeks, hold for 8 to 12 weeks, change one thing at a time, and let objective data — not the label — decide whether it stays in your stack.

Go deeper with our complete urolithin A guide, the detailed dosage and timing page, our summary of the clinical studies, and, if you are choosing a product, our roundup of the best urolithin A gummies.

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. This guide is educational and is not a substitute for advice from a qualified healthcare provider.