Urolithin A Dosage: How Much to Take, When and for How Long

Posted by Fahad Mughal on October 22, 2026
Urolithin A Dosage: How Much to Take, When and for How Long

How much Urolithin A should you take, when should you take it, and for how long? This guide answers the most common dosage questions based on the doses used in human studies, so you can use Urolithin A with confidence.

The short answer

  • Most common daily dose: 500 mg
  • Range used in human studies: 250–1,000 mg per day
  • When: once a day, with a meal, at a consistent time
  • How long: human studies ran about 4 months; it's best viewed as a long-term daily habit

Always follow the directions on your product label.

Doses used in human studies

Study Who took part Daily dose Length
Nature Metabolism, 2019 Healthy older adults 250, 500 and 1,000 mg Single dose and 4 weeks
JAMA Network Open, 2022 Adults aged 65–90 1,000 mg 4 months
Cell Reports Medicine, 2022 Adults aged 40–64 500 and 1,000 mg 4 months

In these studies, Urolithin A was well tolerated at all doses tested, with side effects similar to placebo. Read the full Urolithin A research guide for what each study found.

500 mg or 1,000 mg?

  • 500 mg is a widely used daily amount and was tested in middle-aged adults with positive results on muscle strength measures. It's a sensible starting point for most adults.
  • 1,000 mg was used in both 2022 studies. Some people choose the higher amount, but there's no strong evidence that more is always better.

If you're unsure, start with the labeled serving and talk to your healthcare professional about whether a different amount suits you.

Best time to take Urolithin A

There's no proven "best" time. What matters most is consistency. Practical tips:

  • Take it with a meal, which makes it easy to remember and is gentle on the stomach.
  • Choose a time you'll stick to, for example with breakfast.
  • If you take other supplements such as NMN, it's fine to take them at the same meal.

How long does it take to work?

Urolithin A works at a cellular level by supporting mitochondrial renewal, so it's not something you'll typically feel within days.* The human studies measured results after about 4 months of daily use. Plan to take it consistently for at least 2–3 months before judging how it fits your routine.

Can you take too much?

Human studies have tested up to 1,000 mg per day for 4 months without safety concerns. There's little reason to exceed the labeled serving or combine several Urolithin A products. Higher amounts add cost without proven extra benefit.

Dosing by format

Not sure which format? Compare them in Urolithin A gummies vs capsules, or use our Urolithin A buyer's guide.

Who should talk to a doctor first?

Check with your healthcare professional before taking Urolithin A if you are pregnant or nursing, take prescription medication, or have a medical condition. Urolithin A is intended for adults.

Frequently asked questions

Should I take Urolithin A on an empty stomach?

Taking it with food is the simplest and most common approach. Follow your label.

Can I split the dose?

You can, but the human studies used a once-daily dose, and once a day is easier to remember.

Do I need to cycle Urolithin A?

There's no evidence that cycling is needed. Studies used continuous daily dosing.

Can I take Urolithin A with NMN or other supplements?

Yes, many people combine them. See Urolithin A vs NMN. If you take medication, check with your healthcare professional first.

Sources: Andreux PA et al., Nature Metabolism, 2019; Liu S et al., JAMA Network Open, 2022; Singh A et al., Cell Reports Medicine, 2022.

*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.

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