LONDON—A new study in the American Journal of Clinical Nutrition suggests older adults in low- and middle-income countries who regularly eat fish have a lower risk of developing dementia than those who consume meat.
Researchers from King’s College London surveyed 14,960 residents age 65 years and older living in China, India, Cuba, the Dominican Republic, Venezuela, Mexico and Peru. Dietary intakes and the prevalence of dementia varied between sites. They found a dose-dependent inverse association between fish consumption and dementia that was consistent across all sites except India and a less-
consistent, dose-dependent, direct association between meat consumption and prevalence of dementia.