What dietary changes prevent Alzheimer's?

No specific diet is proven to prevent Alzheimer’s, but a nutrient-dense, minimally processed dietary pattern may support brain health and is associated with lower dementia risk. 1 2

• Antioxidant- and nutrient-rich foods: Berries provide antioxidant polyphenols; blueberries and other dark berries contain anthocyanins, which have been linked to modestly reduced cognitive decline in older adults. 3 4
• Leafy greens and anti-inflammatory foods: Leafy greens are highlighted as part of brain-supportive eating patterns, and diets emphasizing minimally processed foods, vegetables, and other nutrient-dense whole foods are associated with better cognitive outcomes. 2 5
• Ketogenic diet: Early, small Alzheimer’s studies have reported improved daily functioning and quality of life during ketosis, with some cognitive and biomarker improvements; the evidence remains preliminary, and adherence can be difficult. 6