What is Urolithin A?

The short answer

Urolithin A is a compound that gut bacteria make from some fruits and nuts.

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What it is

Type
Gut-metabolite polyphenol (not a peptide)
Also known as
mitopure

Regulatory status

Supplement How we label status

As of October 4, 2026, Urolithin A is sold in the US as a dietary supplement.

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Federal (FDA)
Dietary supplement (DSHEA)

References

Sources as of October 4, 2026

  1. FDA: hfpappexternal.fda.gov/scripts/fdcc/index.cfm