Exploring the Preventive Effects of Omega-3 Polyunsaturated Fatty Acids Supplementation on Global Cognition: A Systematic Review and Meta-Analysis of Cognitively Unimpaired Older Adults
Systematic review finds no significant benefit of omega-3 fatty acids on cognition in cognitively unimpaired older adults, suggesting further research is needed.
Key Points
MAIN FINDING: Omega-3 polyunsaturated fatty acids supplementation does not significantly improve global cognition in cognitively unimpaired older adults.
KEY EVIDENCE: A meta-analysis of 11 placebo-controlled trials showed a standardized mean difference of -0.02, indicating no significant cognitive benefits.
APPROACH: Nineteen randomized controlled trials were reviewed, assessing different omega-3 supplementation types, dosages, and outcomes.
SIGNIFICANCE: Findings underscore the need for higher quality research to clarify the role of omega-3 fatty acids in dementia prevention.