Alzheimer’s, brain fog, and chronic inflammation may have more to do with nutrition than most people realize. Dr. John Lewis shares the remarkable story behind the research that changed his career, and the specific plant-based polysaccharides he believes can support cognitive function, immune balance, and healthy aging.
Kevin Davis sits down with Dr. Lewis to unpack the origin story of his work, from drug-free bodybuilding and nutrition science to a breakthrough Alzheimer’s study that produced clinically and statistically significant improvements in cognition.
They also get into the immune markers, inflammation pathways, and adult stem cell changes that may help explain why the results were so striking.
You’ll discover:
- Why Dr. Lewis says the CD4 to CD8 ratio is a key marker of immune health
- How his team observed reduced inflammatory markers like TNF-alpha and VEGF
- Why the study showed a 286% increase in adult stem cell production
- What happened in the Alzheimer’s and MS research that surprised even skeptical clinicians
- How these polysaccharides fit into a broader strategy for performance, longevity, and brain health
Kevin also brings the conversation back to the real-world concerns many men face today - cognitive decline in loved ones, high-stress living, hormone optimization, training, sleep, hydration, alcohol, and what it actually takes to stay sharp when life is demanding. Dr. Lewis explains why he sees this work as useful not just for advanced disease, but as part of a lifelong health toolbox.Dr. John Lewis is the founder of Dr. Lewis Nutrition and the creator of Daily Brain Care, a supplement built from the research he conducted at the University of Miami. His work spans more than 180 published papers and continues to focus on how nutrition can support the body’s own regulatory systems.
Essential listening if you want a deeper, science-backed conversation about brain health, inflammation, immune function, and what optimized living can look like in practice.
https://drlewisnutrition.com/
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