CHAMGAP
APPROVEDReviewed and approved by the Chamgap Editorial Team (2026-07-11). The draft was written by AI, the existence of all 3 cited sources was verified at the original page, and the verdict passed blind grading and adversarial audit. Methodology v0.6.
Verdict No. 318 · Search date 2026-07-11 · Methodology v0.6

Cantaloupe melon SOD-gliadin complex,
does it really help with Antioxidant effects and reduced oxidative stress?

30-Second Summary
C
Evidence Grade C · 40 · Safety caution
GliSODin has signals for selected oxidative-stress markers, but findings from small trials are inconsistent
What the
research shows
An RCT in 30 elite rowers found improvement in selected oxidative-stress markers, but a trial in 38 middle-aged women was null for oxidative-stress and antioxidant markers and fatigue, and a trial in 46 older women found no significant between-group outcomes at six months. The evidence consists of small, conflicting surrogate-marker studies of a specific complex, resulting in C.
What the
ads claim
Product descriptions may translate SOD enzyme content and selected blood markers into whole-body free-radical removal, prevention of cellular aging, or improved recovery. Human data concern a specific gliadin-bound formulation and surrogate markers in selected populations.
*

Useful facts when choosing a product

  • GliSODin is a branded formulation combining melon SOD with wheat gliadin and is not interchangeable with generic melon extract or SOD products.
  • Study labels and doses range from 10 mg of concentrate to more than 500 mg of complex, making SOD activity units important.
  • TOS, OSI, MDA, and sulfhydryl groups are redox surrogates and do not directly measure aging or disease events.
  • The product contains gliadin, creating product-suitability issues for wheat allergy and celiac disease.
Gap Measurement · Verdict 318 · C 40
What advertising claims
What independent, higher-quality research supports
△ GAP
01

What the research actually shows

The 2011 RCT by Houghton and colleagues gave 38 women aged 50 to 65 with self-perceived fatigue a SOD-gliadin supplement at 500 mg/day for 12 weeks and found no between-group benefit for fatigue, antioxidant status, or oxidative stress. The 2022 RCT by Koike and colleagues analyzed 46 women aged 50 to 80 with pain or discomfort and found no significant main between-group outcomes after six months of Melon GliSODin at 500.4 mg/day; an ingredient-related company funded the study. The 2023 RCT by Dudasova Petrovicova and colleagues reported lower TOS, OSI, and MDA and higher sulfhydryl groups after six weeks in 30 international-level rowers.

02

Why this is classified as C (40)

There are several small RCTs, but positive and null results conflict, evidence is restricted to branded formulations and selected populations, and all outcomes are surrogates. Safety is separated from efficacy, which is rated at the bottom of C with 40 points.

Counterpoint. A signal for changes in selected blood markers remains for the exact GliSODin formulation under exercise-induced oxidative stress. This is not extended to a general anti-aging effect.

Rejudgment record. Reassessment (cross-check reflected) — Small RCTs of specific GliSODin formulations show positive selected oxidative-stress surrogates but other RCTs are null, with substantial product and population specificity and inconsistency

Cross-check — Codex and Claude

This verdict was drafted by Codex through literature review and source-existence checks, cross-checked through blind grading and adversarial audit, and settled by reapplying the methodology boundary rules. Cases with split grades were resolved through rejudgment.
03

Evidence Table

StudyDesignSampleFundingEndpointResultWeight
Houghton CA et al. 2011Randomized double-blind placebo-controlled trial12UnknownFatigue, antioxidant status, oxidative stress, and hormonesNo significant between-group benefit was found for fatigue or oxidative-stress and antioxidant markers.Key
Koike M et al. 2022Double-blind randomized placebo-controlled trial6Funded and supplied by Nutrition Act Co., Ltd.Motor-organ function, subjective symptoms, oxidative markers, and inflammatory markersNo significant between-group differences were found for the main outcomes at six months.Key
Dudasova Petrovicova O et al. 2023Randomized double-blind placebo-controlled trial30Serbian Ministry of Education, Science and Technological DevelopmentTOS, OSI, MDA, sulfhydryl groups, and exercise performanceTOS, OSI, and MDA were lower and sulfhydryl groups were higher in the supplement group.Key
§

Receipt — 3 References

All 3 cited sources were verified for existence at the original page (as of 2026-07-11).

Houghton CA, Steels EL, Fassett RG, Coombes JS. 2011. Effects of a gliadin-combined plant superoxide dismutase extract on self-perceived fatigue in women aged 50-65 years. Phytomedicine. 18(6):521-526. PMID: 21044831. DOI: 10.1016/j.phymed.2010.09.006.
checked
Koike M, Nagao M, Iwase Y, Kaneko K, Ishijima M, Nojiri H. 2022. Clinical Efficacy of Melon GliSODin for the Treatment of Aging-Related Dysfunction in Motor Organs-A Double Blind, Randomized Placebo-Controlled Study. Journal of Clinical Medicine. 11(10):2747. PMID: 35628874. DOI: 10.3390/jcm11102747.
checked
Dudasova Petrovicova O, Stankovic I, Dordevic B, Dopsaj V, Milinkovic N, Dopsaj M. 2023. How Supplementation with SOD-Rich Plant Extract, Combined with Gliadin, Can Affect Oxidative Stress Markers and Zonulin Levels in Exercise-Induced Oxidative Stress. Metabolites. 13(12):1200. PMID: 38132882. DOI: 10.3390/metabo13121200.
checked
Draft and rewrite: Codex (AI) · Verification: Codex blind grading and adversarial audit · Final adjudication: Claude
Reviewed and approved: Chamgap Editorial Team · Approval date: 2026-07-11 · Corrections: none

Cite this verdict

Cantaloupe melon SOD-gliadin complex (GliSODin) × Antioxidant effects and reduced oxidative stress Evidence Grade C card
[Chamgap] Cantaloupe melon SOD-gliadin complex (GliSODin) × Antioxidant effects and reduced oxidative stress — Evidence Grade C·40. 3 cited sources checked. Source: https://health-receipt.pages.dev/en/verdicts/antioxidant-aging/glisodin-oxidative-stress/ · CC BY 4.0

CC BY 4.0 — free to use with attribution; do not distort grades, numbers, or verdict meaning.

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What this document does and does not do

Chamgap is an information source. It reports what research has and has not confirmed; it does not tell readers what to take or buy. That decision belongs to readers and, when needed, medical or legal professionals. This verdict reflects literature available up to the search date and may change as new research appears. Nothing here is medical advice.