Soaking walnuts may sabotage your body’s ability to produce Urolithin A—a gut-derived compound with powerful anticancer, anti-inflammatory, and mitochondrial energy benefits. Here’s what science says and how to compensate.

Researched and Written by Keith Bishop, Clinical Nutritionist, Cancer Coach, Retired Pharmacist, and Founder of Prevail Over Cancer

In the evolving landscape of integrative oncology and precision nutrition, few compounds have sparked as much interest as Urolithin A (UA)—a gut-derived metabolite with compelling anticancer, anti-inflammatory, and mitochondrial-enhancing properties. Let’s unpack what it is, how it’s made, and how to harness its full potential.

What Is Urolithin A and Where Does It Come From?

Urolithin A is not found directly in food. Instead, it’s a postbiotic—a compound produced by your gut microbiota when they metabolize ellagitannins, polyphenols found in:

• Pomegranates
• Walnuts
• Raspberries
• Strawberries
• Pecans

Once consumed, ellagitan...