Struggling with post-meal heaviness or feeling stiff and sore after physical exertion? Source Naturals Bromelain 500 mg 600 GDU delivers a time-tested, plant-based proteolytic enzyme harvested from the pineapple stem (Ananas comosus). Whether you want smoother protein digestion or full-body comfort after exercise, this dual-purpose supplement helps your body break down complex foods and soothe stressed tissues naturally.
Key Product Highlights at a Glance:
✔Potent Proteolytic Action: Delivers 500 mg of pure bromelain yielding 600 G.D.U. per gram to cleave dense dietary proteins.
✔Dual-Action Versatility: Take with food for digestive comfort, or take between meals to support joint mobility and muscle recovery.
✔Fortified with Calcium: Includes 66 mg of dibasic calcium phosphate to support tablet integrity and acid balance.
✔Clean & Trusted: Suitable for vegetarians; free of yeast, dairy, egg, gluten, soy, wheat, sugar, preservatives, and artificial flavors.
What Does "600 GDU" Actually Mean? Understanding Enzyme Potency
When shopping for digestive and systemic enzyme supplements, many brands list only milligrams (mg). However, milligrams simply tell you how much the powder weighs—not how well the enzyme actually works.
GDU stands for Gelatin Digesting Units. It is an official laboratory standard that measures enzymatic speed and power: specifically, how much gelatin (a tough protein) one gram of the enzyme can digest within a fixed timeframe and temperature.
Why 600 GDU/g is an Ideal Daily Strength
Ultra-concentrated extracts (such as 2,400 GDU/g) can occasionally irritate delicate gastric linings or cause loose stools in enzyme-sensitive individuals. Source Naturals' 600 GDU/g formula provides a balanced, steady biological strength. It delivers dependable protein breakdown without shocking sensitive stomachs, making it suitable for both daily digestive care and ongoing recovery support.
How Bromelain Works: Science-Backed Health Benefits
Bromelain acts like a pair of "biochemical scissors." It belongs to the cysteine proteinase family, meaning it targets and cuts complex peptide bonds. Peer-reviewed clinical literature demonstrates four primary physiological benefits:
1. Enhances Protein Digestion & Reduces Bloating
Unlike animal-derived enzymes (such as pancreatin) that require a strict alkaline pH in the intestines, bromelain remains biologically active across a broad pH range of 4.5 to 9.8. This allows it to begin breaking down dietary meats, legumes, and dairy proteins right inside the acidic environment of the stomach, minimizing gas, bloating, and post-meal sluggishness.
2. Promotes Joint Mobility & Soothes Cartilage
Systemically absorbed bromelain modulates pro-inflammatory chemical messengers, including bradykinin and prostaglandin E2 (PGE-2). Clinical research shows it helps preserve joint comfort and eases stiffness in load-bearing joints like knees and hips during daily activities.
Strenuous workouts generate micro-tears in muscle fibers and accumulate localized fluid (edema). Bromelain breaks down fibrin deposits, improving microcirculation and lymphatic drainage so fresh blood and nutrients can repair tired muscles faster.
4. Clears Sinus Passages & Fluid Build-Up
Bromelain exhibits mucolytic actions, meaning it helps thin thickened mucus in nasal cavities and bronchial passages, facilitating easier natural breathing during seasonal transitions.
The Timing Secret: With Meals vs. Between Meals
Because bromelain is a proteolytic enzyme, when you swallow the tablet determines what it does inside your body. Follow this simple guide to tailor it to your exact health goals:
Intended Benefit
Recommended Timing
How It Works in the Body
Digestive Support
1 tablet with a meal (especially protein-rich dishes)
Binds directly to dietary proteins in the stomach, cleaving them into amino acids before they cause bloating or indigestion.
Joint, Muscle & Physical Stress
1 tablet 3 times daily between meals (at least 60–90 min before or after food)
Circulates intact past the stomach wall into the bloodstream to reduce cellular inflammatory triggers and break down fibrin around sore tissues.
Source Naturals adheres to strict Good Manufacturing Practices (cGMP). Every tablet delivers clean, verified active ingredients without unlisted excipients or allergens.
Contains no yeast, dairy, egg, gluten, soy, or wheat. Contains no sugar, starch, salt, preservatives, or artificial colors, flavors, or fragrances. Suitable for vegetarians.
Clinical References & Peer-Reviewed Research
Our health claims and guidance are grounded in verified scientific studies examining oral bromelain administration:
Pavan, R., Jain, S., Shraddha, & Kumar, A. (2012). Properties and therapeutic application of bromelain: a review. Biotechnology Research International, 2012, 976203.
Key Finding: Confirms bromelain is absorbed across human intestinal mucosa without losing enzymatic integrity, exhibiting marked anti-edematous, fibrinolytic, and anti-inflammatory properties.
[PMCID: PMC3529416]
Brien, S., Lewith, G., Walker, A., Hicks, S. M., & Middleton, D. (2004). Bromelain as a Treatment for Osteoarthritis: a review of clinical studies. Evidence-Based Complementary and Alternative Medicine, 1(3), 251–257.
Key Finding: Evaluated clinical trials demonstrating bromelain's capacity to reduce joint stiffness and relieve physical discomfort in degenerative joint conditions.
[PMID: 15841102]
Walker, A. F., Bundy, R., Hicks, S. M., & Middleton, R. W. (2002). Bromelain reduces mild acute knee pain and improves well-being in a dose-dependent fashion in an open study of otherwise healthy adults. Phytomedicine, 9(8), 681–686.
Key Finding: Healthy active participants experiencing acute knee discomfort reported significant improvements in joint mobility and general physical comfort.
[PMID: 12587686]
Majid, O. W., & Al-Mashhadani, B. A. (2014). Perioperative bromelain reduces pain and swelling and improves quality of life measures after third molar surgery: a randomized, double-blind, placebo-controlled trial. Journal of Oral and Maxillofacial Surgery, 72(6), 1043–1048.
Key Finding: Documented a clinically meaningful reduction in postoperative facial swelling and physical discomfort compared to placebo.
[PMID: 24589242]
Safety Guidelines, Interactions & Medical Precautions
While bromelain has a high safety margin when used as directed, responsible supplementation requires being aware of potential drug interactions and contraindications:
Pineapple Allergy Caution: Do not take this product if you have a known allergy to pineapple, honeybee venom, birch pollen, celery, carrot, or fennel (cross-reactivity can occur).
Blood-Thinning Medications: Bromelain has mild antiplatelet (fibrin-dissolving) effects. If you are taking anticoagulant or antiplatelet drugs (such as warfarin, clopidogrel, rivaroxaban, or daily aspirin), consult your prescribing physician before use.
Upcoming Surgery: Discontinue taking bromelain at least 14 days before scheduled surgical or dental procedures to reduce bleeding risk.
Antibiotic Absorption: Bromelain may increase the absorption and blood concentration of certain antibiotics (e.g., amoxicillin and tetracycline). Discuss timing with your doctor.
Pregnancy & Nursing: If you are pregnant, planning to become pregnant, or breastfeeding, consult your healthcare practitioner prior to use.
Disclaimer: Statements made on this page have not been evaluated by the Food and Drug Administration. This dietary supplement is not intended to diagnose, treat, cure, or prevent any disease.
Frequently Asked Questions (FAQ)
Can I get the same benefits just by eating fresh pineapple?
Fresh pineapple contains bromelain, but the highest concentration is found in the tough, inedible stem and core rather than the sweet flesh. Additionally, commercial pineapple canning and pasteurized juices use heat that completely deactivates the enzyme. Supplementing with Source Naturals Bromelain guarantees a standardized, biologically active 600 GDU per gram without the excess fruit sugars.
How long does it take for bromelain to work?
For digestive support, bromelain works immediately on the meal you take it with. For joint flexibility and exercise recovery, clinical trials indicate consistent use between meals for 3 to 14 days is typically needed to experience optimal systemic comfort.
Why is calcium included in this formula?
Each tablet contains 66 mg of calcium in the form of dibasic calcium phosphate. This compound functions as a natural tablet binder, stabilizes the enzyme against premature moisture breakdown, and buffers mild acidity.
Can I take bromelain alongside turmeric or quercetin?
Yes. Bromelain is widely used in synergistic stacks with quercetin and curcumin (turmeric extract). It improves the bioavailability of polyphenols in the intestinal tract and delivers complementary inflammatory pathway modulation.
Does this supplement need to be refrigerated?
No, refrigeration is not required. Store the bottle tightly capped in a cool, dry place away from heat and direct sunlight to preserve enzymatic activity.
