Human study · Supplements / medicine · 15 Sept 2026
Western-style diet linked to faster attention decline in older APOE ε4 carriers
Source: News-Medical
What the research found
Study (observational). Carolina Blagojevic Castro and colleagues at Murdoch University and Alzheimer’s Research Australia report in Nutrients (doi 10.3390/nu18162592) from the Western Australia Memory Study: 185 Perth older adults followed more than seven years, none with diagnosed dementia at entry. Greater adherence to a Western pattern (red and processed meat, chips, pizza, sweets, refined grains, beer) tracked faster decline in attention among APOE ε4 carriers. The association was not seen across the whole sample, not in non-carriers, and not for a Prudent pattern (fruit, vegetables, leafy greens, whole grains) versus cognitive decline. Observational only — not a prescription to genotype-diet or a dementia diagnosis. Educational nutrition notes.
Evidence level: Human study. A study in people, but an association isn't proof of cause.
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