High-potency pineapple enzyme delivering 1,200 active Gelatin Digesting Units per capsule to support comfortable digestion and post-activity joint recovery.
If you frequently feel sluggish after protein-rich meals or deal with stiffness and soreness after physical work or intense exercise, your body may benefit from targeted enzyme support. NOW Bromelain 2400 GDU 500 mg provides a concentrated, natural proteolytic (protein-digesting) enzyme extracted directly from the stems of the pineapple plant (Ananas comosus).
Unlike standard enzyme supplements that measure only raw milligram weight, this formula is standardized to a high activity rating of 2,400 GDU per gram. That means every single 500 mg vegetarian capsule delivers a verified 1,200 GDU of active digestive power. Depending on when you take it, bromelain performs two distinct jobs in your body:
✓Taken With Meals: Acts locally in your stomach and small intestine to break down dense food proteins into absorbable amino acids, helping prevent post-meal bloating and heavy indigestion.
✓Taken Between Meals (Empty Stomach): Enters your circulation intact to help calm temporary swelling, ease exercise-induced muscle soreness, and support flexible joint tissues.
✓Pure & Vegetarian-Friendly: Formulated in plant-derived cellulose capsules with zero animal gelatin, wheat, gluten, soy, dairy, egg, or tree nuts.
Quick Usage Summary: Take 1 veg capsule 1 to 2 times daily. Take with food to assist digestion, or take between meals (at least 1 hour before or 2 hours after food) to support joint and muscle recovery.
Understanding Enzyme Potency: What Does "2400 GDU/g" Actually Mean?
When shopping for dietary supplements, you are probably used to looking strictly at milligrams (mg). With herbs and minerals, milligrams tell you the exact quantity you are receiving. However, with digestive enzymes, milligram weight only tells you how much the powder weighs—not how strong the enzyme is.
An enzyme is a biological catalyst designed to perform a specific reaction. If an enzyme has degraded from heat or poor processing, a 500 mg capsule could be completely inert. That is why professional-grade enzyme supplements are graded by standardized laboratory activity units rather than weight alone.
The Potency Breakdown:
GDU (Gelatin Digesting Units): A laboratory assay that measures how many grams of gelatin protein an enzyme preparation can digest under specific conditions (temperature and pH).
2,400 GDU/g Standard: Represents the highest commercial grade of bromelain extract available, demonstrating 2,400 gelatin digestion units for every 1,000 mg (1 gram) of raw material.
Active Yield Per Capsule: Because each capsule provides 500 mg (0.5 grams) of this standardized extract, each single dose delivers 1,200 active GDU directly to your digestive or systemic pathways.
Note on Units: Some supplements list MCU (Milk Clotting Units). One GDU is approximately equal to 1.5 MCU. Therefore, this 1,200 GDU capsule provides roughly 1,800 MCU of enzymatic strength, ensuring dependable activity from the first capsule to the last.
How to Take Bromelain: The Critical Timing Rule
Bromelain has a unique physiological property: its targeted benefits change completely based on whether food is present in your stomach. To get the exact outcome you are looking for, follow these practical timing protocols:
Option A: With Food (Digestion Support)
Best For: Heavy meals, high-protein athletic diets, fullness, gas, and digestive sluggishness.
How It Works: When swallowed alongside poultry, beef, whey, dairy, or plant proteins, bromelain works within the gastric environment to break long, complex protein chains into smaller peptide fragments. This spares your pancreas from enzymatic strain and accelerates nutrient absorption.
When to Take: Take 1 capsule within 10 to 15 minutes of your main meals.
Option B: Empty Stomach (Joints & Recovery)
Best For: Occasional joint stiffness, post-workout muscle soreness, physical trauma recovery, and fluid balance.
How It Works: Without food proteins to digest, intact bromelain molecules cross through the intestinal lining into the bloodstream. Once circulating systemically, it assists your immune system in degrading cellular waste and moderating inflammatory chemicals.
When to Take: Take 1 capsule at least 1 hour before eating or 2 hours after finishing a meal.
Clinical Research: The Science Behind Proteolytic Enzymes
Bromelain is one of the most thoroughly researched plant proteases in modern nutritional biochemistry. Extensive human and laboratory investigations have mapped out how this enzyme works at the cellular level:
▸Intact Intestinal Bioavailability: Clinical pharmacokinetic trials confirm that approximately 40% of orally ingested bromelain is absorbed across the intestinal barrier intact via pinocytosis, maintaining functional enzymatic activity in blood plasma (Castell et al., 1997; Pavan et al., 2012).
▸Modulation of Inflammatory Pathways: Rather than acting as a synthetic blocker, bromelain selectively balances cellular signaling cascades. Research demonstrates that bromelain downregulates nuclear factor kappa B (NF-κB) translocation and blunts pro-inflammatory prostaglandins (PGE2) while promoting anti-inflammatory mediators (Maurer, 2001).
▸Joint Comfort and Mobility: In systematic reviews evaluating musculoskeletal health, bromelain supplementation consistently demonstrated meaningful improvements in joint comfort, morning stiffness, and physical mobility in individuals experiencing chronic physical stress and knee wear (Brien et al., 2004; Walker et al., 2002).
▸Edema Resolution and Tissue Repair: Bromelain enhances fibrinolysis (the natural breakdown of excess fibrin mesh), facilitating healthy fluid drainage, microcirculation, and accelerated cellular repair following athletic strain or minor surgical procedures (MacKay & Miller, 2003).
Selected Scientific References:
• Castell, J. V., et al. (1997). Am J Physiol Gastrointest Liver Physiol, 273(1): G139-G146.
• Maurer, H. R. (2001). Cell Mol Life Sci, 58(9): 1234-1245.
• Walker, A. F., et al. (2002). Phytomedicine, 9(8): 681-686.
• Brien, S., et al. (2004). Evid Based Complement Alternat Med, 1(3): 251-257.
• Pavan, R., et al. (2012). Biotechnol Res Int, 2012: 976203.
VitaNet provides 100% verified label accuracy directly from NOW Foods production batches. There are no hidden proprietary blends, artificial preservatives, or chemical fillers.
Supplement Facts
Serving Size: 1 Veg Capsule Servings Per Container: 120
Amount Per Serving% Daily ValueBromelain (2400 GDU/g)† (from Pineapple)500 mg *
* Daily Value not established.
† GDU (Gelatin Digesting Units): A validated scientific measure of proteolytic (protein-digesting) enzymatic activity.
Detailed Ingredients & Formulation Details:
Other Ingredients: Hypromellose (cellulose capsule), Rice Flour, Magnesium Stearate (vegetable source), and Silicon Dioxide.
Allergen Declaration: Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut, or sesame ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.
NOW Foods Quality Control: ISO 17025 Labs & Contaminant Screening
In an unregulated marketplace flooded with white-label imports, what is printed on the label often fails to match what is inside the bottle. NOW Foods operates one of the most advanced analytical testing operations in North America to ensure that what you ingest is clean, potent, and safe.
Testing Rigor Behind Every Batch:
31,000+ Monthly Tests: NOW performs over 31,000 analytical tests and assays each month across raw materials, in-process blends, and finished products inside their A2LA ISO/IEC 17025 accredited laboratories.
Heavy Metal Screening (ICP-MS): Utilizing cutting-edge Inductively Coupled Plasma Mass Spectrometry (ICP-MS), every batch is analyzed for heavy metal contaminants—lead, arsenic, cadmium, and mercury—detecting impurities down to parts-per-billion (ppb) to meet strict California Proposition 65 and USP standards.
Pesticide & Herbicide Screening (LC-MS/MS): Advanced liquid chromatography tandem mass spectrometry screens raw pineapple extracts for agricultural chemical residues, including organophosphates and glyphosate.
Enzyme Activity Validation: NOW chemists perform direct gelatin digestion assays to verify that the active protease content measures exactly 2,400 GDU/g before releasing the product for shipment.
Microbiological Purity: Comprehensive testing confirms the complete absence of harmful pathogens, including Salmonella, E. coli, Staphylococcus aureus, total coliforms, yeast, and molds.
NOW Foods holds third-party Intertek GMP (Good Manufacturing Practice) certification, ensuring rigorous sanitation, equipment calibration, and batch tracking standards from harvest to delivery.
Real-World Safety, Contraindications & Drug Interactions
A critical part of responsible supplementation is knowing who should not take a product and recognizing potential interactions. Bromelain is biologically active and carries several important clinical considerations:
⚠Pineapple & Cross-Allergies: Do NOT take this supplement if you have a known allergy to pineapple. People allergic to birch pollen, latex, celery, rye flour, grass pollen, or cypress pollen may experience cross-reactive sensitivities.
⚠Blood-Thinning & Anti-Platelet Medications: Bromelain possesses mild natural antiplatelet and fibrinolytic properties. If you are taking warfarin (Coumadin), clopidogrel (Plavix), apixaban (Eliquis), aspirin, or daily NSAIDs, consult your physician before use as bromelain may increase bleeding risk.
⚠Upcoming Surgeries: Stop taking bromelain at least 14 days prior to any planned surgical or dental procedures to prevent excess intraoperative bleeding. You may resume only after your surgeon clears you.
⚠Antibiotic Interactions: Bromelain can increase the tissue absorption and serum concentrations of certain antibiotics, particularly amoxicillin and tetracyclines. Always discuss concurrent use with your prescribing medical provider.
⚠Pregnancy and Nursing: Not recommended for pregnant or lactating women due to insufficient clinical safety data regarding uterine smooth muscle activity.
Why Order From VitaNet, LLC? Practical Experience Since 1995
VitaNet, LLC is an independent, family-owned nutritional wellness store operating out of Hartville, Ohio[cite: 1]. With over 31 years of direct experience evaluating natural formulations and helping customers navigate supplement protocols, we understand the science of enzymatic stability[cite: 1].
The VitaNet Quality Standard:
Climate-Controlled Storage: Proteolytic enzymes are temperature- and moisture-sensitive proteins. We store all inventory in strictly climate-controlled facilities to prevent denaturing before the bottle reaches your doorstep.
Guaranteed Factory Freshness: We manage rapid inventory turnover directly from authorized manufacturers, guaranteeing fresh expiration dates on every shipment.
Risk-Free Guarantee: We stand behind every bottle with our 100% money-back guarantee, even covering return shipping on opened products[cite: 1].
Have a question about combining bromelain with your current regimen? Contact our team during regular store hours for personalized customer assistance[cite: 1].
Frequently Asked Questions (FAQ)
1. When is the best time to take NOW Bromelain 500 mg?
It depends on your primary goal. If you are taking bromelain to relieve indigestion, bloating, or heavy fullness after eating protein, take 1 capsule right with your meal. If you are taking bromelain to soothe aching joints, relieve muscle soreness after working out, or ease minor physical swelling, take 1 capsule on an empty stomach (at least 1 hour before eating or 2 hours after a meal) so the enzyme can enter your bloodstream directly.
2. What does 2400 GDU/g mean on the label?
GDU stands for "Gelatin Digesting Units." It is the standard laboratory measure of an enzyme's ability to digest protein bonds. An activity of 2,400 GDU per gram represents the highest potency bromelain available. Because each capsule contains 500 mg (half a gram) of this concentrated extract, each capsule gives you 1,200 active GDU of enzymatic power.
3. Can I take Bromelain if I am allergic to pineapples?
No. Bromelain is extracted directly from the stem and fruit of the pineapple plant (Ananas comosus). If you have an allergy to pineapple, you must avoid this supplement. Individuals who have allergies to latex, birch pollen, celery, or grass pollen should also exercise caution or consult an allergist, as cross-reactivity can occur.
4. Does bromelain interact with prescription medications?
Yes. Bromelain has mild blood-thinning and antiplatelet effects, which means it can increase the risk of bleeding if taken with anticoagulants like warfarin, apixaban, or aspirin. It can also increase how much of certain antibiotics (like amoxicillin and tetracycline) your body absorbs into tissue. Always consult your doctor before taking bromelain if you take prescription medications.
5. How does NOW Foods test their bromelain for safety and purity?
NOW Foods tests their raw materials and finished supplements in accredited ISO/IEC 17025 in-house laboratories, running over 31,000 analytical tests monthly. They use Inductively Coupled Plasma Mass Spectrometry (ICP-MS) to check for heavy metals (lead, cadmium, mercury, and arsenic) down to parts-per-billion, run liquid chromatography to ensure zero pesticide residue, verify enzyme activity through gelatin assays, and perform strict microbial pathogen screens.
6. Is this bromelain supplement vegetarian and gluten-free?
Yes. NOW Bromelain 500 mg is encapsulated in vegetarian hypromellose capsules and is completely vegan. It contains no wheat, gluten, soy, dairy, egg, fish, shellfish, tree nuts, or sesame.
