Omega-3 fatty acids have plausible roles across several areas relevant to athletes, but the strength of the research varies considerably depending on the outcome, the population studied, the dose used and whether the focus is performance, recovery or longer-term health. This makes it difficult for athletes and practitioners to know when supplementation is genuinely useful and when an attractive biological mechanism has simply been pushed further than the data allow. This webinar separates that evidence from the surrounding noise. Dr Oliver Witard works through what we currently know, where findings can reasonably be applied to athletes, and where important gaps remain. Alongside the science, the emphasis is firmly practical: how to interpret supplement labels, distinguish EPA and DHA from total fish-oil content, judge whether supplementation is warranted, and make decisions that reflect an athlete's diet, goals and circumstances. The result is a framework for using fish oil deliberately rather than simply because it is widely recommended.