Researchers analyzed data from 13 previous studies involving 678 people on hemodialysis (kidney dialysis) to see if omega-3 fatty acid supplements could reduce inflammation. They specifically looked at changes in a blood marker called C-reactive protein (CRP). The analysis found that taking omega-3 supplements was associated with lower CRP levels compared to other treatments or placebos. This effect was clearer when people took a daily dose under 2000 mg and when the supplement was in a natural triglyceride form rather than a synthetic type.
Information about side effects was not well documented in most of the studies. A few studies mentioned only mild, temporary issues like diarrhea. No serious safety problems were reported, but the lack of detailed safety data means we cannot be sure about the risks.
The main reason to be careful is that this is a review of existing, smaller studies, not new, large-scale research. The quality of the original studies varied, and the results show a link, not proof that omega-3s caused the reduction in inflammation. Readers should understand that while this is a promising finding for managing inflammation in dialysis patients, it is not yet strong enough to change standard medical practice. More high-quality research is needed to confirm a true benefit and to figure out the best dose and type of omega-3 supplement for this purpose.