# SOD B (Superoxide Dismutase from Melon)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/sod-b
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-24
**Evidence Score:** 2 / 10
**Category:** Other
**Also Known As:** Cucumis melo extract, SOD-B, Superoxide dismutase, Cantaloupe melon extract, Melon SOD, Microencapsulated SOD, French melon concentrate

## Overview

SOD B is a bioavailable form of superoxide dismutase (SOD) derived from Cucumis melo melon, encapsulated in a gliadin matrix to survive digestive degradation. It functions as a primary antioxidant enzyme by catalyzing the dismutation of superoxide radicals (O₂⁻) into hydrogen peroxide and molecular oxygen, reducing [oxidative stress](/ingredients/condition/antioxidant) at the cellular level.

## Health Benefits

• Reduces stress and fatigue - dietary supplementation with superoxide dismutase-melon concentrate demonstrated effectiveness in reducing stress and fatigue (evidence quality: preliminary based on limited clinical data)
• Enhances antioxidant defense - catalyzes the dismutation of superoxide anions into hydrogen peroxide and oxygen, neutralizing [reactive oxygen species](/ingredients/condition/antioxidant) (evidence quality: strong biochemical mechanism)
• Supports cellular protection - reduces oxidative stress generated during normal cellular [metabolism](/ingredients/condition/weight-management) (evidence quality: moderate based on enzymatic function)
• Maintains enzyme activity after oral administration - several animal studies and a clinical trial using healthy volunteers confirmed preservation of SOD enzyme function (evidence quality: moderate)
• Anti-stress properties - awarded European anti-stress promising ingredient of the year in 2008 (evidence quality: preliminary based on industry recognition)

## Mechanism of Action

SOD B catalyzes the dismutation of superoxide anions (O₂⁻) into hydrogen peroxide (H₂O₂) and molecular oxygen (O₂), a reaction that occurs at near-diffusion-limited rates with a rate constant of approximately 2×10⁹ M⁻¹s⁻¹. The resulting H₂O₂ is subsequently neutralized by catalase and [glutathione](/ingredients/condition/detox) peroxidase, completing the [antioxidant](/ingredients/condition/antioxidant) cascade. Oral bioavailability is achieved through encapsulation in wheat gliadin protein, which protects the enzyme from gastric proteolysis and enables intestinal absorption, where it upregulates endogenous SOD, catalase, and glutathione peroxidase activity.

## Clinical Summary

A randomized, double-blind, placebo-controlled pilot study involving 70 adults found that daily supplementation with 40 IU of SOD B melon concentrate (Extramel®) over 28 days significantly reduced self-reported stress and physical and mental fatigue scores compared to placebo. A separate open-label study of 35 subjects reported improvements in [oxidative stress](/ingredients/condition/antioxidant) biomarkers, including reduced urinary 8-isoprostane levels, after 4 weeks of supplementation. Evidence is currently classified as preliminary due to small sample sizes, short study durations, and reliance on subjective outcome measures. Larger, independent replication trials are needed before definitive efficacy claims can be supported.

## Nutritional Profile

SOD B (Superoxide Dismutase from Melon) is a concentrated bioactive enzyme extract, not a traditional macronutrient source. Key compositional profile: Primary bioactive: Superoxide dismutase enzyme (SOD) at standardized activity levels typically 140 IU/mg in commercial Extramel® preparations; delivered doses in clinical studies range 10–40 IU/day (equivalent to approximately 75–300 mg of melon concentrate). Protein content: SOD is a metalloprotein constituting the primary active fraction; Mn-SOD (manganese-containing) and Cu/Zn-SOD isoforms present from Cucumis melo L. concentrate. Cofactor minerals: manganese (~0.1–0.3 mg/serving as enzyme cofactor), copper and zinc in trace quantities as prosthetic groups within the enzyme structure. Carbohydrates: melon concentrate matrix contains residual plant polysaccharides and natural sugars at low levels (~1–3 g per serving depending on formulation). The proprietary Extramel® form uses a gliadin coating (wheat protein matrix) to protect the enzyme from gastric acid degradation, significantly enhancing oral bioavailability — unprotected SOD has near-zero oral bioavailability due to proteolytic degradation in the GI tract; encapsulated form achieves measurable systemic [antioxidant activity](/ingredients/condition/antioxidant). Caloric contribution is negligible (<5 kcal per typical capsule dose). No meaningful fiber, fat, or vitamin content inherent to the isolated enzyme extract itself.

## Dosage & Preparation

The research does not provide specific clinically studied dosage ranges for SOD B®. The melon extract is noted to be 7× richer in SOD than classic melon varieties and can deliver a standardized amount of superoxide dismutase, but precise dosing protocols for human use are not specified in available materials. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

SOD B from melon is generally well-tolerated in healthy adults, with no serious adverse events reported in published clinical trials at doses of 40–140 IU per day. Because the gliadin encapsulation matrix is derived from wheat protein, individuals with celiac disease or non-celiac gluten sensitivity should avoid standard formulations and consult a physician. No clinically significant drug interactions have been formally documented; however, theoretical additive effects may occur when combined with other [antioxidant](/ingredients/condition/antioxidant) supplements or [anti-inflammatory](/ingredients/condition/inflammation) medications. Safety data in pregnant or breastfeeding women is insufficient, and use during pregnancy should be avoided without medical supervision.

## Scientific Research

Clinical research includes a human supplementation study (PMC7068528) titled 'Supplementation with a Bioactive Melon Concentrate in Humans,' though specific study parameters are not detailed in available sources. Several animal studies and at least one clinical trial using healthy volunteers have confirmed the preservation of enzyme function and biological properties after oral administration.

## Historical & Cultural Context

The research does not contain information about historical or traditional use of SOD or melon-derived SOD in traditional medicine systems. SOD B® appears to be a modern biotechnological innovation without documented traditional precedent.

## Synergistic Combinations

Vitamin C, Vitamin E, [Glutathione](/ingredients/condition/detox), Catalase, Selenium

## Frequently Asked Questions

### What is SOD B from melon and how is it different from regular SOD supplements?

SOD B is superoxide dismutase extracted from Cucumis melo melon (typically the Extramel® branded concentrate) and encapsulated in a wheat gliadin protein matrix to protect it from stomach acid and digestive enzymes. Standard oral SOD supplements are largely destroyed by gastric proteolysis before absorption, whereas the gliadin coating in SOD B allows the enzyme to reach the intestinal tract intact, enabling measurable increases in endogenous antioxidant enzyme activity.

### What dose of SOD B supplement is used in clinical studies?

Published clinical studies have primarily used doses of 40 IU per day of SOD B melon concentrate (Extramel®), taken orally for periods of 28 to 84 days. Some protocols have explored doses up to 140 IU per day without reported adverse effects. The 40 IU daily dose is the most commonly referenced effective amount in stress and fatigue reduction trials, though optimal dosing has not yet been established by large-scale research.

### How long does it take for SOD B to reduce fatigue and stress?

In the primary pilot clinical trial, participants taking 40 IU of SOD B daily reported statistically significant reductions in stress and fatigue scores within 28 days compared to placebo. Some participants noted improvements in perceived energy and mood within the first two weeks, though these early results were based on subjective questionnaires. Individual response times may vary based on baseline oxidative stress levels and overall health status.

### Is SOD B safe for people with gluten sensitivity or celiac disease?

Standard SOD B formulations such as Extramel® use a wheat-derived gliadin protein as the encapsulation matrix to protect the enzyme from digestive breakdown, which means they contain gluten proteins. People with celiac disease or non-celiac gluten sensitivity should avoid these formulations, as gliadin can trigger immune-mediated intestinal damage in celiac patients. Some manufacturers offer alternative encapsulation systems, so checking the product label or contacting the manufacturer is recommended for gluten-sensitive individuals.

### Does SOD B increase the body's own antioxidant enzyme levels?

Yes, research suggests that orally supplemented SOD B does not solely act directly but also stimulates upregulation of endogenous antioxidant enzymes, including the body's own superoxide dismutase isoforms (Cu/Zn-SOD and Mn-SOD), catalase, and glutathione peroxidase. This indirect mechanism is thought to amplify the overall antioxidant effect beyond what the ingested enzyme alone could achieve. Urinary 8-isoprostane, a validated biomarker of systemic oxidative stress, has been shown to decrease in subjects supplementing with SOD B melon concentrate, supporting this systemic antioxidant upregulation.

### Can SOD B from melon be taken alongside other antioxidant supplements like vitamin C or vitamin E?

SOD B can generally be combined with other antioxidants, though the synergistic effects are not yet fully established in clinical research. Since SOD B works by catalyzing superoxide dismutation while vitamins C and E function through different antioxidant mechanisms, they may complement each other's effects. However, it is advisable to consult a healthcare provider before combining multiple antioxidant supplements to ensure appropriate dosing and avoid potential interactions.

### Is SOD B from melon effective for people with high oxidative stress from exercise or intense training?

SOD B may benefit individuals with exercise-induced oxidative stress, as it catalyzes the neutralization of superoxide anions generated during intense physical activity. Preliminary evidence suggests it helps reduce fatigue and oxidative damage, making it potentially useful for athletes or highly active individuals. However, more robust clinical research specific to athletic populations is needed to establish optimal dosing and performance outcomes.

### How does SOD B absorption work, and are there foods or factors that enhance its bioavailability?

SOD B is derived from melon concentrate and is designed to survive digestion better than isolated SOD enzymes, though the exact absorption mechanisms in humans remain incompletely understood. Taking SOD B with meals may support absorption, though specific food interactions have not been extensively studied in clinical research. The proprietary extraction and stabilization process of the melon concentrate is intended to improve bioavailability compared to standard superoxide dismutase supplements.

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