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Cucumber Powder

Also known as: Cucumis sativus, cucumber extract, dried cucumber

Evidence under review. — Not yet rated

Vegetable-derived powder with modest antioxidant benefits in older adults. Very limited clinical evidence.

  • What it does

    Cucumber powder is a dried, concentrated form of the common cucumber vegetable. One small pilot study in adults over 60 found that 30 days of supplementation increased blood levels of vitamin C,...

  • Evidence quality

    Evidence base hasn't been formally rated yet. See research below.

  • Clinical dose

    No established dose (insufficient research data)

See full breakdown ↓ Methodology →

What the Science Says

Cucumber powder is a dried, concentrated form of the common cucumber vegetable. One small pilot study in adults over 60 found that 30 days of supplementation increased blood levels of vitamin C, total phenolics, and the antioxidant enzyme glutathione peroxidase, while also reducing DNA damage markers in blood cells and decreasing hemolysis. These effects were modest and similar to those seen with lotus root powder, suggesting the benefits may come from the general antioxidant compounds found in vegetables rather than anything unique to cucumber.

What It Doesn't Do

Not proven to significantly boost overall antioxidant capacity as measured by standard FRAP assays. Didn't meaningfully change vitamin E, glutathione, or key oxidative stress markers like malondialdehyde. No evidence it prevents disease, supports weight loss, or offers benefits beyond what you'd get from eating vegetables. Don't confuse it with sea cucumber, which is a completely different ingredient.

Evidence-Based Benefits

May increase glutathione peroxidase activity and vitamin C levels in older adults after 30 days.

Weak Evidence

Effective at: No established dose

May reduce DNA damage markers in blood cells of adults over 60.

Weak Evidence

Effective at: No established dose

Absorption & Bioavailability

Unknown — the single provided study measured blood markers but did not assess absorption or bioavailability of specific cucumber compounds.

Red Flags to Watch For

  • Only one small pilot study exists in humans — far too little evidence to support strong health claims
  • Many products labeled 'cucumber powder' may actually contain sea cucumber (a marine animal), which is a completely different ingredient with different effects
  • Exact doses used in the only clinical study were not clearly reported, making dosing guidance impossible
  • Over 1,000 supplement products on the market contain this ingredient despite minimal clinical research

Research Sources

  • PubMed
  • NIH DSLD

This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Last updated: 2026-05-25