Urolithin A: The Complete Guide
By the Mito Renewal Editorial Team · Last updated 5 July 2026
Urolithin A is a compound produced by gut bacteria from ellagitannins in foods like pomegranates and walnuts. It is studied for its role in mitophagy — the cellular process that clears out and recycles worn-out mitochondria, the structures that produce energy in your cells. This guide brings together everything we cover about Urolithin A: what it is, where it comes from, what the research shows, how it's dosed, who it suits, and how it compares to branded options like Mitopure.
What is Urolithin A?
Urolithin A is a gut-derived metabolite — your body makes it, but only indirectly. When you eat ellagitannin-rich foods (pomegranates, walnuts, raspberries, strawberries), your gut bacteria convert those compounds, via ellagic acid, into Urolithin A. Not everyone's microbiome produces it efficiently, which is why standardised supplements exist. For a plain-English primer, read our beginner's guide to Urolithin A.
How Urolithin A works: mitophagy and mitochondria
Mitochondria are the energy-producing structures inside nearly every cell. Over time some become damaged. Mitophagy is your body's process for clearing out those damaged mitochondria and making room for healthier ones — and it tends to slow with age. Urolithin A has been studied specifically for its role in supporting this process. It was first characterised in this context in a 2016 Nature Medicine study, which found it induced mitophagy and improved muscle function in animal models.
What the research shows
Human research on Urolithin A is real but still developing. Highlights from the peer-reviewed literature include a first-in-human safety trial (Nature Metabolism, 2019), a randomised controlled trial in older adults reporting improved muscle endurance and mitochondrial biomarkers (JAMA Network Open, 2022), and a trial in middle-aged adults on muscle strength and exercise performance (Cell Reports Medicine, 2022). We break these down in detail in Urolithin A benefits: what the research actually shows, and list every source on our research & references page. A note on honesty: these studies examine a compound and its biological signatures — they are not a guarantee of any outcome for any individual.
How much Urolithin A should you take?
Published human trials have most commonly used 500mg per day, with some using 1000mg, taken consistently over a period of months. Mito Renewal Complete provides 500mg of Urolithin A per capsule. For a full breakdown of dosing, timing and consistency, see our Urolithin A dosage guide. Always follow the guidance on your product label.
Is Urolithin A safe? Who should take it?
In human trials to date, Urolithin A has been reported as safe and well tolerated. As with any supplement, check with your healthcare provider before starting — especially if you are pregnant, nursing, taking medication, or managing a health condition. Our guide to who should and shouldn't take Urolithin A covers this honestly, including who it isn't for.
Urolithin A from food vs supplements vs Mitopure
You can get the building blocks of Urolithin A from food, but the amount your body actually produces depends on your gut microbiome and is hard to control. Branded forms like Mitopure (by Timeline/Amazentis) are patented, clinically-studied forms of Urolithin A. Generic Urolithin A supplements provide the same compound. We explain the real differences — and what to look for regardless of brand — in Urolithin A vs Mitopure.
How to choose a Urolithin A supplement
- Dose: look for a clearly stated amount of Urolithin A per serving (500mg is the most commonly studied).
- Transparency: the label should state Urolithin A content, not hide it in a proprietary blend.
- Consistency of supply: this is a daily, long-term supplement — value per month matters.
- Honest marketing: be cautious of any brand claiming to treat or cure conditions.
Frequently asked questions
What is Urolithin A?
Urolithin A is a compound your gut bacteria produce from ellagitannins found in foods like pomegranates and walnuts. It is studied for its role in mitophagy and mitochondrial health.
How much Urolithin A should I take per day?
Human studies have most commonly used 500mg per day, taken consistently for several months. Follow your product label; Mito Renewal Complete provides 500mg per capsule.
Is Urolithin A safe?
In published human trials, Urolithin A has been reported as safe and well tolerated. Consult your healthcare provider before use if you are pregnant, nursing, on medication, or managing a health condition.
How long does Urolithin A take to work?
It is designed to be taken consistently over time. Trials have run over periods of months, and individual experiences vary.
Is Mito Renewal Complete the same as Mitopure?
Both provide Urolithin A, the same compound. Mitopure is a patented, clinically-studied form by Timeline/Amazentis; the published clinical trials were conducted specifically on Mitopure. Mito Renewal Complete is an Australian-based Urolithin A supplement providing 500mg per capsule.
This guide is for general education and is not medical advice. Mito Renewal Complete is a dietary supplement and is not intended to diagnose, treat, cure or prevent any disease. Consult your healthcare practitioner before starting any supplement. See our medical disclaimer.