Health Longevity Secrets What If a ‘Good Sugar’ Could Improve Alzheimer’s?
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Dec 30, 2025 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.
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Polysaccharides As Biological Signals
- Polysaccharides are complex signaling molecules, not just calories, with dense 3D structures carrying biological information.
- John Lewis argues aloe acemannan and rice bran polysaccharides modulate immune balance and cellular responses beyond simple nutrition.
Academic Success Led To Funding Roadblock
- After publishing his Alzheimer's trial, John Lewis expected big funders but faced rejection and left academia.
- He attributes the lack of support to funding biases toward drugs and genetics over nutrition.
Not All Sugars Are Equal
- Sugars differ: mono- and disaccharides often harm metabolic health while polysaccharides can have therapeutic roles.
- Lewis emphasizes context: not all sugars are equal and polysaccharides can be highly beneficial.