The Effect of Whole-Diet Interventions on Memory and Cognitive Function in Healthy Older Adults – A Systematic Review

This systematic review examined how whole-diet interventions affect memory and cognition in older adults (aged 60+). It analyzed 23 studies focusing on randomized controlled trials of comprehensive dietary plans rather than single nutrients. While some studies reported modest improvements in memory and cognitive function, particularly with Mediterranean or MIND diets, the results were inconsistent. Multidomain interventions that combined diet with physical or cognitive activities showed more promise. The findings underscore the potential of lifestyle changes to support brain health but highlight the need for more robust and well-designed trials to confirm these effects.

Adopting a diet rich in fruits, vegetables, whole grains, and healthy fats, such as the Mediterranean diet, may support memory and cognitive function. Combining this with physical activity and mental engagement could enhance benefits. However, individual results may vary, and broader studies are needed to validate the consistency of these improvements.