Polyphenol Metabolism

This marker evaluates the genetic capacity of your microbiome to transform polyphenols (the antioxidants present in pomegranates, nuts, and berries) into highly potent bioactive molecules, with Urolithin A being the most important. Possessing the bacteria capable of performing this transformation has an "anti-aging" effect. If you lack them, your body will not be able to extract these cellular benefits, regardless of how many berries you consume.

We have been taught that eating antioxidant-rich foods (like pomegranates, strawberries, or walnuts) is excellent for keeping us young. These foods contain complex compounds called ellagitannins.

The problem is that ellagitannins are enormous molecules. Your small intestine cannot absorb them, so they pass intact to the colon. Once there, they depend completely on a very select group of gut bacteria.

These bacteria act like a "biorefinery": they take the ellagitannins and process them step by step until they are converted into a small molecule called Urolithin A. Unlike the original ellagitannins, Urolithin A is easily absorbed into the blood and travels throughout your body, entering your cells and activating genetic rejuvenation programs. If you don't have these specific bacteria (which happens in 60-70% of the world's population), this metabolic magic simply doesn't occur.

The evaluation of this marker through Shotgun metagenomics does not focus on generic enzymatic pathways, but rather on the detection of highly specific bacterial taxa that possess the rare ability to hydrolyze ellagic acid.

Scientific literature classifies humans into "metabotypes" based on their flora:

• Metabotype A: Exclusive producers of Urolithin A.
• Metabotype B: Producers of Urolithin B and Iso-Urolithin A (less bioactive).
• Metabotype 0: Non-producers (unable to transform ellagic acid).

Our bioinformatic pipeline maps the abundance of key bacterial species responsible for this bioconversion, belonging to the Eggerthellaceae family (Actinobacteria phylum). The primary target taxa are Gordonibacter urolithinfaciens, Gordonibacter pamelaeae, and Ellagibacter isourolithinifaciens.

If your result indicates that you are a "Producer" (Metabotype A/B), your strategy should be to consume precursors: include nuts, pomegranate, and berries in your diet, as your body is an efficient anti-aging factory. If your result is "Non-Producer" (Metabotype 0), consuming these foods will not generate Urolithin A; in this case, the most effective clinical intervention is direct supplementation with postbiotic Urolithin A or ultra-fermented extracts, bypassing the need for bacterial conversion.

The ability to produce Urolithin A is one of the most revolutionary discoveries in recent longevity science:

• Mitophagy (Cellular Recycling): Mitochondria are responsible for energy production in your cells. With age, they wear out, fail, and produce oxidative stress. Urolithin A is the only known natural molecule that activates mitophagy: a cellular process that detects old and defective mitochondria, destroys them, and recycles them to build new mitochondria capable of continuing to produce energy.
• Muscle Health and Endurance: By clearing defective mitochondria, Urolithin A dramatically improves muscle function. Clinical studies show that it increases muscle endurance and combats sarcopenia (age-related muscle loss) without the need to change exercise habits.
• Neurocognitive Protection: The role of this metabolite in reducing neuroinflammation, protecting the brain against age-related cognitive decline, is being actively investigated.