Urolithin A 500 mg: What the Research Actually Uses (and How to Take It)
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Urolithin A has gone from a niche research compound to one of the most talked-about ingredients in healthy-aging circles. Most of the conversation skips the practical question: how much urolithin A per day did the human studies actually use, and how does that translate to the capsule in your hand? This guide covers what the research used, how our 250 mg capsules map to those amounts, and how to make urolithin A a consistent part of your routine.
What is urolithin A?
Urolithin A is a postbiotic. Your gut bacteria make it when they break down ellagitannins, polyphenols found in pomegranates, walnuts, raspberries and strawberries. Once it's absorbed, urolithin A has been studied for its role in mitophagy, the cell's normal process of clearing out worn-out mitochondria so healthier ones can take over.*
Mitochondria are the structures inside your cells that turn food and oxygen into usable energy. Keeping them in good shape is a big part of how cells maintain normal energy production as you get older.*
Why food alone isn't a reliable source
The catch is that converting ellagitannins into urolithin A depends on having the right gut microbes. Research suggests people vary widely here: some convert well, many produce only small amounts, and some produce very little. Two people can drink the same glass of pomegranate juice and end up with very different urolithin A levels. A supplement skips that conversion step and delivers a consistent, measured amount.
How much urolithin A per day did the research use?
Three human studies come up most often. They all used daily doses of 500 mg or 1,000 mg:
| Study | Who took part | Daily dose | Duration | What was measured |
|---|---|---|---|---|
| Andreux et al., Nature Metabolism, 2019 | Healthy, sedentary older adults | Single doses up to 2,000 mg; 250–1,000 mg daily | 4 weeks | Safety and tolerability, plus markers of mitochondrial and cellular health |
| Singh et al., Cell Reports Medicine, 2022 | 88 middle-aged adults (40–64) | 500 mg or 1,000 mg | 4 months | Muscle strength, exercise performance and mitochondrial markers |
| Liu et al., JAMA Network Open, 2022 | 66 adults aged 65–90 | 1,000 mg | 4 months | Muscle endurance, walking distance and cellular-health markers |
Here's an honest summary. Urolithin A was well tolerated at these doses. The studies reported improvements in some measures, including leg-muscle strength in the middle-aged group, muscle endurance in the older group, and several blood and muscle markers tied to mitochondrial function. Other primary measures, such as peak power output, six-minute walk distance and maximal ATP production, did not differ significantly from placebo. That's normal for early human research, and it's why we describe urolithin A as supporting mitochondrial function and cellular energy rather than promising a specific result.*
One more note: these trials used a specific, high-purity urolithin A ingredient made for research. Results from any study apply to the conditions of that study.
How 250 mg capsules map to the research
EONIQ Evolve+ Urolithin A provides 250 mg of urolithin A per vegetarian capsule. We use 250 mg capsules because they make the research amounts easy to reach and easy to adjust:
- 2 capsules = 500 mg, the lower daily dose used in the 2019 and 2022 human studies, and our standard 2-capsule serving.
- 4 capsules = 1,000 mg, the higher dose used in the same research. The 2022 JAMA Network Open trial reached 1,000 mg with four 250 mg softgels.
- 1 capsule = 250 mg, a gentle starting point if you like to begin low and build up.
Always follow the directions on your label, and talk with a qualified healthcare professional before going above the suggested serving.
Prefer a single daily stack?
If you also want CoQ10 support, EONIQ Evolve+ MITO combines 500 mg urolithin A, 100 mg ubiquinol and 20 mg PQQ in a 2-capsule serving. It's built for people who want mitochondrial support from one bottle.* MITO already contains urolithin A, so if you take it, you don't need a separate urolithin A product to reach 500 mg. Count the total from both before you combine them.
How to take urolithin A
1. Pick a consistent time
The human studies used once-daily dosing, and the 2022 older-adult trial gave participants their dose in the morning on an empty stomach. The best time is the one you'll stick to. Many people tie it to something they already do every morning so it becomes automatic.
2. Think in months, not days
Urolithin A works with slow, ongoing cellular housekeeping. The human trials that measured muscle and performance outcomes ran for about four months. Give it a real trial of 8–16 weeks of daily use before you judge it.
3. Pair it with the habits that support mitochondria
Supplements work best on top of the basics. Regular movement (especially zone-2 cardio and resistance training), enough protein, consistent sleep, and a diet rich in polyphenols all support normal mitochondrial function.* Think of urolithin A as one layer of a routine, not a replacement for one.
4. Consider complementary nutrients
Urolithin A supports the quality-control side of mitochondrial health, and CoQ10 is a working part of the electron transport chain that produces cellular energy. That's why many people pair urolithin A with EONIQ Evolve+ Ubiquinol (100 mg of active, reduced CoQ10 per capsule, best taken with a meal that contains some fat).*
Who usually chooses urolithin A?
- Adults in their 40s and beyond who want to support cellular energy and healthy aging.*
- Active people who want to support normal muscle function alongside training.*
- Anyone who eats pomegranates and berries but can't tell how much urolithin A their gut is actually making.
Urolithin A isn't for everyone. If you're pregnant or nursing, take prescription medication or have a medical condition, check with your healthcare provider before starting any new supplement.
Quick FAQ
Is 250 mg of urolithin A enough?
A single 250 mg capsule is a reasonable starting point. The human trials used 500 mg (2 capsules) and 1,000 mg (4 capsules) per day, so most people build toward the 2-capsule serving.
Can I get the same amount from pomegranate juice?
Not reliably. Juice provides ellagitannins, not urolithin A, and how much your gut converts varies a lot from person to person. A supplement delivers a measured dose directly.
Should I take it with food?
Follow your label. One of the trials dosed it in the morning on an empty stomach, but what matters most is taking it at the same time every day. Pairing it with a daily habit, like your morning coffee or water, makes that easy.
Can I take urolithin A with MITO?
MITO already provides 500 mg of urolithin A per serving, so most people choose one or the other. If you combine them, add up your total daily intake and follow label directions.
The bottom line
The human research on urolithin A centers on 500 mg to 1,000 mg per day, taken consistently for weeks to months. With 250 mg capsules, EONIQ Evolve+ Urolithin A lets you match those amounts exactly. If you'd rather take a single all-in-one mitochondrial formula, look at Evolve+ MITO. Either way, pair it with movement, protein and sleep for best results.*
Explore all EONIQ longevity formulas →
References
Andreux PA, et al. The mitophagy activator urolithin A is safe and induces a molecular signature of improved mitochondrial and cellular health in humans. Nature Metabolism. 2019;1:595–603. doi:10.1038/s42255-019-0073-4
Singh A, et al. Urolithin A improves muscle strength, exercise performance, and biomarkers of mitochondrial health in a randomized trial in middle-aged adults. Cell Reports Medicine. 2022;3(5):100633. PMC9133463
Liu S, et al. Effect of urolithin A supplementation on muscle endurance and mitochondrial health in older adults: a randomized clinical trial. JAMA Network Open. 2022;5(1):e2144279. PMID 35050355
*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 article is for educational purposes only and is not medical advice. Consult a qualified healthcare professional before starting any dietary supplement, especially if you are pregnant, nursing, taking medication or have a medical condition.