EXPLAINER: Glucosamine and Alzheimer's: Protection or Poison?

EXPLAINER: Glucosamine and Alzheimer's: Protection or Poison?

June 23, 2026 · 9 min · Episode 274

About this episode

This episode explores the dual role of glucosamine in brain health and its implications for Alzheimer's disease.

The same glucosamine pill millions take for joint pain may protect a healthy brain — and accelerate Alzheimer's in a brain already in decline. Here's the science. In this episode of Health Longevity Secrets, Robert Lufkin MD breaks down the 2026 plot twist on glucosamine and dementia: why a supplement once hailed as a longevity hack now carries an Alzheimer's warning, and why the answer comes down to one thing — the state of your metabolism. The same molecule helped the metabolically healthy ...

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