John Lewis
Former university professor and researcher in psychiatry and family medicine who led studies on plant polysaccharides (aloe and rice bran) showing immune and cognitive effects in Alzheimer's and other conditions, and founder of Dr. Lewis Nutrition.
Best podcasts with John Lewis
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Dec 30, 2025 • 45min
What If a ‘Good Sugar’ Could Improve Alzheimer’s?
John Lewis, former university professor and researcher who studied plant polysaccharides, discusses aloe and rice bran compounds as immune-signaling “sugars.” He explains how these complex carbohydrates differ from simple sugars. Short segments cover measurable immune changes, clinical cognitive improvements in Alzheimer’s trials, why food may not provide therapeutic doses, and challenges moving from academia to supplement development.
