27 Best Natural Supplements to Prevent Dementia 2026: 1,000+ Studies Analyzed
Can natural supplements effectively treat or prevent dementia? Some studies suggest that B vitamins, omega-3 fatty acids, vitamin D3 and magnesium may have modest benefits, but it's important to consult a doctor before starting any supplement regimen. Let's dive into the evidence. Update 2026: This 2026 update substantially replaced and revised the supplement-centric framework with a 2026 evidence hierarchy. Mechanistic, observational and anecdotal evidence is intentionally separated from randomized clinical evidence: Preventing Alzheimer’s Disease and Dementia in 2026: An Evidence-Based Review of Lifestyle, Supplements, Biomarkers, and Metabolic Health. Contents Introduction Best Supplements to Prevent and Reverse Alzheimer's and Dementia Vitamin D3 B Vitamins Omega-3 fatty acids Magnesium and Molecular Hydrogen Ginko Biloba Soy Isoflavones Ginseng Melatonin Gree...