Glucosamine Linked to Faster Dementia Progression in MCI and Higher Mortality in Dementia
A UF Health AI-assisted study published in Nature Metabolism analyzed records from 2012–2024 (over 50,000 patients with dementia or MCI). It found that about 8% used glucosamine and, among those with MCI, users were 25% more likely to progress to dementia, while among patients with dementia, use was linked to a 25% higher risk of death. The authors caution this is associative, not causal, and call for controlled trials. Glucosamine can cross the blood–brain barrier and may influence protein sugar-tagging in Alzheimer’s brains. If you have dementia or MCI and take glucosamine, discuss alternatives with a clinician; healthy adults face no immediate alarm.
