Plant MedicineOlive Leaf

Olive Leaf
Olea europaea (leaf)
Family: Oleaceae
At a glance
Best for: Blood pressure, Immune support, Antioxidant
Common forms: Tea, Capsule, Extract
Evidence level: Promising
Cautions: May lower blood pressure significantly
What it is
Olive leaf is the leaf of the olive tree (Olea europaea). It contains oleuropein, a bitter compound with powerful antioxidant and antimicrobial properties.
Traditional use
Used in Mediterranean folk medicine for fever, hypertension, and infections. Ancient Egyptians used it for mummification due to its preservative properties.
What modern research suggests (Promising)
RCTs show significant blood pressure reduction comparable to captopril (ACE inhibitor). Studies show antiviral, antibacterial, and antioxidant effects.
Safety + interactions
Generally safe. May lower blood pressure—use caution if on antihypertensives. May cause mild digestive upset.
May interact with: Antihypertensive medications, Diabetes medications
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Disclaimer: This content is educational and not medical advice. Always consult a qualified healthcare provider before using any herbs or supplements, especially if you are pregnant, nursing, taking medications, or have a medical condition.