BACKGROUND/OBJECTIVES: Omega-3 fatty acids (-3), recognized for their anti-inflammatory and brain health benefits, are being studied to enhance cognitive function, aid physical recovery, and reduce injury rates among military service members (SMs). Given the unique demands faced by this tactical population, this systematic review aims to evaluate the evidence of -3 to support physical and mental resilience and overall performance.

METHODS

This review was conducted in accordance with Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) guidelines and includes articles that assessed -3 status or implemented -3 interventions in relation to physical and cognitive performance, recovery, and injury outcomes (2006 to 2024). Of the 1606 articles yielded in screening through Covidence, 755 were irrelevant, leaving 226 studies for full-text eligibility. Of those 226 studies, 165 studies were excluded, and 61 studies were included in this review.

RESULTS

The results highlighted evidence-based findings in five key areas where omega-3 fatty acids are being evaluated to benefit military service members. These key areas include cardiopulmonary function, exercise recovery, cognitive function, injury recovery, and strength and power. While existing research suggests promising benefits, the most significant evidence was seen with cardiopulmonary function, exercise recovery, and cognitive function.

CONCLUSIONS

Current research is promising and shows potential benefits, but the results are inconclusive and inconsistent. Future research is needed to determine optimal -3 status, dose, and possibly type of -3 across the various performance outcomes. Understanding these gaps in research will be essential to creating evidence-based -3 guidelines for optimal performance of SMs.