EPISODE · Mar 13, 2026 · 47 MIN
John E. Lewis, Ph.D. - The Polysaccharide Breakthrough for Brain Health and Alzheimer’s
from The Dr. K Show · host Dr. Michael Karlfeldt
What if the nutrients modern diets ignore are the very ones your brain and immune system desperately need? In this episode of The Dr. K Show, Dr. K sits down with nutritional researcher John E. Lewis, Ph.D., founder of Dr Lewis Nutrition® and lead investigator of a groundbreaking clinical trial on polysaccharides from aloe vera and rice bran. Dr. Lewis explains why the war on “all sugar” is scientifically flawed and why certain complex sugars may play a crucial role in immune intelligence, cellular communication, and brain health. The conversation explores his University of Miami research showing improvements in cognitive function in people with moderate to severe Alzheimer’s disease, along with increases in adult stem cells and improved immune markers. Dr. Lewis also exposes why nutrition research often receives little funding compared to pharmaceuticals, the science behind polysaccharides and cellular communication, and why extreme diets like keto and carnivore may miss critical components of human biology. If you want to understand how nutrition, immune modulation, and complex carbohydrates influence brain health and aging, this episode will change the way you think about food and supplements. Key Takeaways: 0:00 Introduction 3:20 How bodybuilding sparked a lifelong focus on nutrition science 6:30 The discovery of aloe vera polysaccharides and Alzheimer’s research 12:10 Why nutrition research receives little funding compared to drugs 16:45 The science of polysaccharides and cellular communication 21:40 Alzheimer’s findings: immune balance, stem cells, and cognitive improvement 27:10 Why Alzheimer’s disease is more complex than plaque and tangles 31:15 The gut microbiome connection and polysaccharide prebiotic effects 36:00 Why keto and carnivore diets may miss critical nutrients 41:10 The creation of Daily Brain Care and future of polysaccharide research Resources Mentioned: Dr Lewis Nutrition - https://drlewisnutrition.com/ Journal of Alzheimer’s Disease - https://www.j-alz.com/ University of Miami - https://www.miami.edu/ Medical Disclaimer: This content is for educational purposes only and is not intended to diagnose, treat, cure, or replace professional medical advice. Always consult your physician or qualified healthcare provider regarding any medical condition or treatment decisions. ____________________________________ If you're ready to optimize your health, restore your vitality, and take control of your longevity, subscribe now and join The Dr. K Show community. ____________________________________ CONNECT WITH DR. KARLFELDT: Website: TheKarlfeldtCenter.com Instagram: instagram.com/thekarlfeldtcenter Facebook: facebook.com/thekarlfeldtcenter ____________________________________ 📖 BOOK: The Science and Spirit of Transformation: A Holistic Guide to Elevating Health, Consciousness, and Purpose Get your copy at: store.thekarlfeldtcenter.com/products/the-science-and-spirit-of-transformationPrice: $24.99 | Use code DRKSHOWPODCAST for 100% off ____________________________________ MORE PODCASTS FROM DR. KARLFELDT: 🎙 Integrative Cancer Solutions — Real patient stories and evidence-based integrative therapies for those navigating a cancer diagnosis. 🎙 Integrative Lyme Solutions — Expert guidance and healing journeys for those dealing with Lyme disease and co-infections. Explore all shows on https://www.youtube.com/@KarlfeldtCenter👉 Schedule a Free 15-Minute Discovery Call with a Naturopathic Doctor at The Karlfeldt Center:📞 208-338-8902📧 [email protected]
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John E. Lewis, Ph.D. - The Polysaccharide Breakthrough for Brain Health and Alzheimer’s
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