On an empty stomach for the systemic anti-inflammatory effect; with food to aid digestion.
Reduces swelling and pain.
View the study (RCT) →⏱ 3 min read
Bromelain is a mixture of proteolytic enzymes extracted from the stem or fruit of the pineapple (Ananas comosus), a fruit that tropical cultures have used for centuries as a digestive aid, meat tenderizer, and remedy for localized inflammatory processes; the two main commercial forms (stem bromelain and fruit bromelain) have slightly different profiles but share the fundamental proteolytic activity that is the basis of their clinical applications.
The documented pharmacological effects are multiple and combine local actions (in the digestive tract, where it performs a digestive function) with systemic actions after absorption of active proteolytic fragments (around 40 percent of ingested bromelain is absorbed intact or as fragments with preserved enzymatic activity): an anti-inflammatory effect mediated by the degradation of fibrin and inflammatory mediators, an anti-edema effect in traumatic injuries, modulation of coagulation with a mild antiplatelet effect, a mild mucolytic action on respiratory secretions, and, potentially, an immunomodulatory effect in some contexts.
The indication with the strongest clinical support is the reduction of edema, bruising, and pain in acute traumatic injuries and in the postoperative period: several trials have shown significant improvements in these parameters with doses of 200-400 milligrams three times a day for 5-15 days, with magnitudes comparable to those of some pharmacological anti-inflammatory drugs and with a favorable tolerability profile.
In oral surgery (wisdom tooth extraction, implants), nasal surgery, and minor orthopedic surgery, perioperative bromelain significantly reduces edema and postoperative pain in several European and Latin American studies; some integrative oral surgery guidelines include it as an optional recommendation to speed recovery.
In symptomatic osteoarthritis of the knee and hip, several small trials have shown significant improvements in pain and function with doses of 500-1,500 milligrams daily for 4-12 weeks, comparable to those of some pharmacological anti-inflammatory drugs with a better gastrointestinal tolerability profile; combined formulations with trypsin and rutin (Phlogenzym, Wobenzym) are European products with specific clinical support in this indication.
In acute and chronic sinusitis, bromelain has shown significant reductions in the viscosity of nasal secretions and symptomatic improvements with supplementation for 5-10 days, an indication with moderate clinical support and with documented pediatric use in some European guidelines.
The doses studied vary enormously depending on the indication and the enzymatic potency of the product (measured in GDU or MCU, standardized units of enzymatic activity): for postoperative or post-traumatic inflammation, 500-2,000 mg/day divided into 2-3 doses; for osteoarthritis, 1,000-1,500 mg/day divided; typical commercial products contain 500 mg per capsule with variable potency; it should be taken on an empty stomach (at least 30 minutes before or 2 hours after meals) for systemic anti-inflammatory effects, or with meals for a digestive effect.
Generally well tolerated; the adverse effects described are rare and mild (digestive discomfort, loose stools at high doses, occasionally skin rash); people with a pineapple allergy may have allergic reactions and should avoid bromelain; those taking anticoagulant or antiplatelet drugs (warfarin, dabigatran, aspirin, clopidogrel) should be cautious because of the mild antiplatelet effect described, which could increase the risk of bleeding; those taking antibiotics may have a documented increase in drug absorption (amoxicillin, tetracyclines); people who are going to undergo surgery should stop bromelain at least 1-2 weeks beforehand because of the antiplatelet effect; in pregnancy and breastfeeding the data are limited and it is not recommended as a precaution; products without enzymatic activity declared in GDU or MCU may have highly variable clinical efficacy, so it is best to choose products with specific standardization.
Information, not medical advice. Scientific evidence reflects the quality of the studies.