The APOE4 Carrier and the Nutrition Dilemma
A critical appraisal of the SNAC-K cohort analysis (JAMA Network Open, 2026; n=2,157) reporting that higher meat intake was associated with slower cognitive decline in APOE ε4 carriers but not in non-carriers. Assessed against Bradford Hill criteria, with attention to processed versus unprocessed meat and the limits of observational nutrition evidence.
