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Effects of Dietary Interventions on Cognitive Outcomes
Judith Charbit1, Jean-Sébastien Vidal1, Olivier Hanon1
1Service Gérontologie Hôpital Broca, Université Paris Cité, AP-HP, F-75013 Paris, France.
Nutrients
|June 27, 2025
Summary
Dietary interventions, including specific nutrients and dietary patterns, show promise for supporting cognitive health during aging. Key findings suggest benefits for memory, particularly with B vitamins and omega-3 fatty acids.
Area of Science:
- Nutrition Science
- Neuroscience
- Gerontology
Background:
- Cognitive aging is a complex process influenced by genetics, metabolism, and environment.
- Nutrition is a key modifiable factor for preserving cognitive function.
- Dietary interventions are increasingly explored for their impact on cognition and mental health.
Purpose of the Study:
- To review the impact of dietary interventions on cognitive domains and mental health.
- To synthesize findings on specific nutrients and dietary patterns affecting cognition.
- To identify current evidence gaps and future research directions.
Main Methods:
- Comprehensive literature review of dietary interventions and cognitive aging.
- Analysis of studies on specific nutrients (e.g., B vitamins, omega-3s) and dietary patterns (e.g., MIND diet).
- Evaluation of effects on memory, executive function, global cognition, and mental health.
Main Results:
- Multinutrient supplementation (B vitamins, omega-3s) shows benefits for episodic memory, especially in at-risk individuals.
- Antioxidant-rich diets and the MIND diet correlate with better memory and global cognition.
- Effects on executive function and mental health are variable, with potential benefits in specific subgroups.
Conclusions:
- Dietary interventions represent a safe and promising strategy for supporting cognitive health in aging.
- Further research is needed to address methodological variability in interventional studies.
- Personalized, multidomain prevention models are recommended for future research.
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