iOnco
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Watercress

Nasturtium officinale

Anti-tumourmoderate evidence

Watercress contains phenethyl isothiocyanate (PEITC), which inhibits HIF-1α (hypoxia-inducible factor) in tumours — disrupting the tumour's blood supply strategy. Clinical studies show watercress consumption significantly reduces DNA damage in lymphocytes. It is also one of the most nutrient-dense foods with extraordinary concentrations of vitamins K, C, and folate.

Medicinal Properties

Anti-tumourAntioxidantDetoxifyingNutritiveGlucosinolate-rich
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Cancer Types Studied

BreastColonLungBladder

Recommended Dosage

80 g fresh watercress daily as salad or in smoothies.

Preparations

Watercress Salad

80 g fresh watercress daily as base for salad. Do not cook heavily — lightly wilt at most.

Watercress Smoothie

Add a handful of fresh watercress to green smoothies daily.

NIH / PubMed Research

Links open on PubMed (National Library of Medicine). Research is ongoing — results may not reflect clinical use.

Cautions & Interactions

  • Avoid if kidney stones (oxalates)
  • Avoid harvesting from polluted water sources
  • May interact with warfarin — consistent intake important
  • Avoid in pregnancy in large supplemental amounts

Informational only. Not medical advice. Consult your healthcare provider before use.