Bromelain: Benefits, Evidence, Papain and Safety

Bromelain is a group of protein-digesting enzymes from the stem and fruit of the pineapple plant. As an oral supplement, it has been studied most for pain and swelling after wisdom tooth surgery, with small and conflicting results, and the NIH’s complementary health center says the evidence for sinus problems is not strong enough to recommend it. A concentrated bromelain-based product applied to the skin is a different story: it became an FDA-approved prescription drug for removing dead tissue from severe burns in 2022. Oral bromelain is usually well tolerated, but stomach upset, allergies and blood-thinner interactions are real concerns. Here is what the research shows.

Peptide Labs sells products that contain bromelain, but this article does not recommend any of them. It is general information, not medical advice.

What is bromelain?

Bromelain is a protease, an enzyme that cuts proteins into smaller pieces. Researchers classify it as a cysteine protease, the same family as papain. Commercial bromelain is mostly extracted from pineapple stems, which are a by-product of the fruit industry. FDA lists bromelain as generally recognized as safe for use in food, where it is used to break down proteins, for example in meat tenderizing, dairy processing and brewing.

In supplements, bromelain shows up two ways: as a stand-alone product and as one of many ingredients in digestive, joint or weight-management blends. People often call it the “pineapple enzyme”. Because its strength varies by extract, labels may state enzyme activity rather than weight alone. A 2023 review found that some bromelain is absorbed and keeps its activity in the blood after oral intake, which is part of why it has been studied for uses beyond digestion.

Bromelain vs papain

Papain comes from the latex of unripe papaya and is also approved as a food ingredient. The two enzymes are close relatives, and the immune system can confuse them: in a 1979 report on factory workers, five of six people sensitized to papain also reacted to bromelain on testing. Papain also has a regulatory history. In 2008, FDA ordered unapproved topical papain drug products off the market after 37 adverse event reports, including serious anaphylaxis that began within minutes of use. That action covered skin products, not papain in food or oral forms.

Bromelain benefits: what the research shows

NCCIH lists the uses bromelain is promoted for: pain after wisdom tooth removal, sinus inflammation, osteoarthritis, sore muscles after exercise and burn care. The quality of evidence differs a lot between them.

Wisdom tooth surgery

This is the most studied oral use, and the results disagree. Two 2019 meta-analyses each pooled six randomized trials. One found less facial swelling and less pain at day 7, but no change in jaw stiffness. The other found less pain in the first 24 hours and at day 7 and better quality of life, but no evidence of less swelling or jaw stiffness. Both called for larger, better trials. NCCIH sums this up as some studies suggesting a benefit.

Sinus symptoms

NCCIH says there is not enough high-quality evidence to recommend oral bromelain for sinusitis. A 2020 expert review of more than 60 alternative remedies for sinus and nasal problems rated bromelain among the few with low to moderate-quality support, while noting that comparisons with standard care were missing.

Pain and other uses

A 2023 meta-analysis of 39 studies found that oral bromelain lowered pain scores slightly more than control groups, and it did not help cardiovascular outcomes. The studies covered many different conditions and products, so the pooled result is hard to apply to any single situation.

Bromelain for digestion

Bromelain is common in enzyme blends sold for digestion, but there is little direct human research on bromelain alone as a digestive aid. Our digestive enzymes guide explains which enzymes have trial support for which foods.

Topical bromelain: NexoBrid is a prescription drug

On December 28, 2022, FDA approved NexoBrid (anacaulase-bcdb), a bromelain-based enzyme concentrate, for removing dead tissue (eschar) from deep partial-thickness and full-thickness thermal burns in adults. NCCIH notes it is used by health care professionals as an alternative to surgical removal. It is a regulated, sterile drug used in specialized care. Opening a supplement capsule onto a wound is not the same thing and is not safe.

Bromelain side effects, allergies and interactions

• Stomach effects: NCCIH lists stomach upset and diarrhea as the most common side effects; the 2023 review also noted gas, nausea and headache.
• Allergy: Memorial Sloan Kettering advises people with pineapple allergy to avoid it. Lab tests show bromelain can cross-react with papain and with some pollen, wheat and latex allergens, though a positive test does not always mean symptoms.
• Bleeding: lab and animal studies suggest bromelain may raise bruising and bleeding risk with blood thinners such as warfarin; tell your surgeon or dentist if you take it.
• Antibiotics: it may raise blood and urine levels of tetracycline antibiotics.
• Pregnancy and breastfeeding: safety is unknown, according to NCCIH.

Bromelain is often combined with turmeric in joint and inflammation-themed blends. Turmeric has its own cautions, covered in our turmeric side effects article.

Bromelain in products we carry

We do not sell stand-alone bromelain. It appears as one ingredient in several multi-ingredient formulas, where the label is the only reliable guide to what else you are taking:

• Nature’s Craft Advanced Complex capsules list bromelain and turmeric root extract among smaller botanicals, with celery seed, tart cherry and green coffee bean extract as main ingredients. Green coffee bean extract naturally contains some caffeine, and the label does not state an amount.
• NUVAIOBTY GLP-1 supplement lists bromelain with an enzyme activity rating, plus hops extract, licorice root standardized to glycyrrhizin, ginger and aloe. It is a dietary supplement, not a GLP-1 medication.
• Natnect GLP-1 Supplement includes bromelain alongside capsicum, green tea, berberine, licorice and peppermint. Its label states it is not a GLP-1 medication and contains no GLP-1 drug or hormone.

For more on gut-focused supplements, see digestive health supplements and our practical guide to easing bloating.

Frequently Asked Questions

Questions about a label? Contact us or read our Buyer’s Guide. Follow the label and ask a healthcare provider before starting any supplement, especially if you take medicines. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Last reviewed October 2026.

Related guides: Digestive Enzymes: What They Do, Who Needs Them and What Works, Digestive Health Supplements: Fiber, Probiotics, Prebiotics and Enzymes Explained, Turmeric Side Effects: Liver Injury, Interactions and Turmeric vs Curcumin.