iOnco
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Olive Leaf

Olea europaea

Anti-tumourmoderate evidence

Oleuropein from olive leaf is a potent polyphenol that induces apoptosis in breast, bladder, brain, and colon cancer cells, inhibits angiogenesis, and prevents metastasis. Olive leaf extract also has potent antiviral activity, reduces blood pressure, and supports cardiovascular health — all relevant to cancer patients.

Medicinal Properties

Anti-tumourAntiviralAntimicrobialAnti-inflammatoryAntioxidant
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Cancer Types Studied

BreastBladderBrainColon

Recommended Dosage

500–1000 mg standardised olive leaf extract (20% oleuropein) daily.

Preparations

Standardised Extract Capsules

500–1000 mg olive leaf extract standardised to 20% oleuropein twice daily with food.

Olive Leaf Tea

Steep 1–2 tsp dried olive leaves in hot water 10–15 min. Drink 2 cups daily.

NIH / PubMed Research

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

Cautions & Interactions

  • May lower blood pressure significantly — monitor with antihypertensives
  • May lower blood sugar — monitor in diabetics
  • Detox reactions possible when starting — begin with low dose
  • May interact with blood-thinning medications

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