Efficacy of omega-3 fatty acids supplementation as an adjunct to nonsurgical periodontal therapy in periodontitis: a systematic review and meta-analysis of randomized controlled trials.

A meta-analysis of nine randomised controlled trials found that omega-3 fatty acid supplements combined with scaling and root planing produced greater reductions in probing pocket depth and gains in clinical attachment level compared with scaling and root planing alone, though evidence quality was low and heterogeneity was substantial.

A plain-English summary of the study's own findings — we don't add our own claims or interpretation. Read the full paper for the complete methods and results, and apply your own clinical judgement.