Urolithin A

Urolithin A is a metabolite compound produced by gut bacteria during the metabolism of ellagitannins.

It is a member of the compound known as benzo-coumarins or dibenzo-pyrones.

Its precursors, ellagic acids and ellagitannins, are found in many plants, including edible ones like pomegranates, strawberries, raspberries, and walnuts.

Since the early 2000s, urolithin A has been the focus of exploratory research into its potential biological effects.

Urolithin A is not known to be present in any .

Its bioavailability is largely determined by the composition of the particular microbiota, since only a few bacteria are capable of converting ellagitannins into urolithins.