One Day MD | Evidence-Based Wellness

For decades, omega-3 fatty acids have been promoted as “brain food.” Fish oil supplements rich in DHA and EPA are widely used for: memory support, healthy aging, cardiovascular protection, and Alzheimer’s disease prevention. But a controversial new study from the Alzheimer’s Disease Neuroimaging Initiative has challenged that narrative. Researchers reported that omega-3 supplementation was associated with faster cognitive decline in older adults , potentially through effects on brain metabolism rather than classic Alzheimer’s pathology. Does this mean fish oil is bad for the brain? Not so fast. In this article, we break down: what the study actually found, why the findings are controversial, possible biological explanations, key limitations, and what this means for omega-3 supplementation in 2026. What Did the New Omega-3 Alzheimer’s Study Find? The 2026 study: “The association between omega-3 supplementation and cognitive decl...

Quick Answer The best diet for dementia and Alzheimer’s disease is the MIND diet, followed closely by the Mediterranean diet. Supplements with the strongest supportive evidence include omega‑3 fatty acids (DHA/EPA), B‑vitamins (B6, B12, folate) for those with deficiency, vitamin D, and curcumin. No supplement or diet can cure Alzheimer’s, but metabolic and anti‑inflammatory nutrition patterns are associated with slower cognitive decline and reduced dementia risk. Why Diet and Supplements Matter in Dementia Alzheimer’s disease is increasingly recognized as a metabolic‑inflammatory neurodegenerative disorder , not just an amyloid condition. Key drivers include: Brain insulin resistance ("type 3 diabetes") Chronic neuroinflammation Oxidative stress and mitochondrial dysfunction Cerebrovascular impairment Diet and targeted supplementation influence all four pathways, making nutrition a foundational intervention for prevention and early‑stage support. Best Diets for Dementia and ...

Glutathione deficiency is one of the most consistent and earliest biochemical abnormalities found in Parkinson’s disease and Alzheimer’s disease. Long before neurons are lost, the brain’s primary intracellular antioxidant is already depleted—leaving neurons vulnerable to oxidative stress, mitochondrial failure, and inflammation. This pillar page serves as a comprehensive, evidence-based hub explaining glutathione’s role in brain health, why it declines in neurodegenerative disease, and how it fits into modern systems medicine and metabolic models of neurodegeneration. Table of Contents What Is Glutathione? Why the Brain Depends on Glutathione Oxidative Stress and Neurodegeneration Glutathione in Parkinson’s Disease Glutathione in Alzheimer’s Disease Cause or Consequence? Why Glutathione Declines With Age Glutathione, Mitochondria & Metabolic Health Can Glutathione Be Restored? Biomarker & Clinical Implications Systems Medicine Perspective Key Takeaways What Is Glutathione? Glu...

Bruce Willis... The man who once ruled Hollywood now lives with 24/7 care, unable to speak and unable to recall he was ever a legend. Money, fame, and status... all gone in the fog of dementia. And if that doesn’t shake you to your core, you might wanna pay attention more to yourself. ( source ) 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. In This Article: B Vitamins Vitamin D3 Omega-3 fatty acids Magnesium and Molecular Hydrogen Soy Isoflavones Ginseng Melatonin Ginko Biloba Green Tea (EGCG) Quercetin Coconut Oil Lutein (carotenoids) Selenium Zinc Turmeric (Curcumin) Citicoline Combined Metabolic Activators (NR, NAC, L-Carnitine and L-Serine) Centrum Silver Multivitamin Creatine Mushrooms (Ergothioneine, Lion's Mane and Reishi) Choline Pre...