The Health Edge: translating the science of self-care

Your gut can turn ellagic acid into urolithin A—and that shift may protect muscle, brain, and metabolism


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If pomegranates, raspberries, and walnuts could whisper a secret to your cells, it might be this: the right microbes can turn plant defense into human resilience. We dive into the journey from ellagic acid to urolithin A, mapping how polyphenols meet the microbiome to support mitochondrial function, muscle strength, and brain health. Along the way, we unpack the science of mitophagy, inflammation control, and metabolic signaling that ties colorful foods to better performance and longevity.

We share why only an estimated 20–40% of people currently convert ellagic acid to urolithin A, and what that means for your choices. You’ll hear practical ways to build a food-first foundation—pomegranate arils or juice (mind the sugar), raspberries, blackberries, and walnuts—while nurturing a diverse microbiome with fiber-rich meals. We also explore when direct urolithin A supplementation might be considered, what early trials show for strength and function, and how to think about testing—from proprietary blood kits to broader stool profiling—without getting lost in the weeds.

Throughout, we keep one principle in focus: hormesis. Whole-food antioxidants rarely overwhelm, but concentrated interventions can mute the low-level stress signals that spark repair. By pairing smart training, adequate protein, and polyphenol-rich foods, you create overlapping pathways for mitochondrial renewal and metabolic health—even if you’re not yet a “converter.” Subscribe for more evidence-led, kitchen-to-cell insights, and leave a review to tell us: are you going food-first, testing, supplementing, or blending all three?


For video, Powerpoint slides and referenced research go to www.thehealthedgepodcast.com

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The Health Edge: translating the science of self-careBy Mark Pettus MD and John Bagnulo PhD, MPH

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