Bromelain for Sinus And Congestion Relief

Research suggests that bromelain, an enzyme derived from pineapple, may help reduce symptom duration and severity in both acute and chronic sinusitis, with support coming from a range of study types including a 2023 systematic review and meta-analysis pooling 54 clinical studies, a pediatric multicenter trial, a small pilot study in chronic rhinosinusitis patients, two systematic reviews of complementary therapies for chronic rhinosinusitis, a Delphi consensus review, and several older double-blind trials from the 1960s whose full details are not publicly available. A 2018 pharmacokinetic study adds biological plausibility by demonstrating that orally taken bromelain can reach sinonasal mucosal tissue, while reviews of bromelain's mechanisms consistently describe anti-inflammatory and anti-edematous properties that align with potential benefit in sinus conditions. Across the available evidence the direction is consistently supportive, and bromelain appears generally well tolerated with mostly mild side effects, though the body of research has notable limitations including small sample sizes, modest methodological quality in many of the included trials, limited evidence specifically for chronic versus acute sinusitis, and an absence of large, well-designed randomized controlled trials that would be needed before formal clinical recommendations could be made. Studies indicate bromelain holds some promise as a complementary approach for sinus and congestion symptoms, but the current evidence is best characterized as encouraging rather than conclusive.