Olive
A Mediterranean leaf traditionally used for cardiovascular and metabolic support.
Olive (Olea europaea) is a long-cultivated Mediterranean tree prized for its fruit and the oil extracted from it; its leaves are also widely used in herbal practice. Olive leaves contain secoiridoids such as oleuropein and a range of phenolic compounds, and are available fresh or dried, as powders, tinctures, fluid extracts and capsules.
Traditionally used for cardiovascular and metabolic support, olive leaf preparations and olive-derived phenols have been the subject of research into effects on blood pressure, glucose and lipid metabolism, as well as antioxidant and anti-inflammatory activity. Preparations, dosing and responses vary, and uses and effects may differ between individuals; any herbal regimen should be chosen with attention to product quality and, when appropriate, professional guidance.
At a Glance
A small evergreen native to the Mediterranean, Olive is cultivated for its fruit and oil and its leaves are used in traditional and modern herbal preparations. The leaf contains oleuropein and other secoiridoids, plus phenolic compounds, flavonoids and triterpenes.
Products include dried leaf, powders, tinctures, fluid and dry extracts and capsules; traditional and researched uses focus on cardiovascular and metabolic support, while individual responses vary.
| Common name | Olive |
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| Scientific name | Olea europaea |
| Plant family | Oleaceae |
| Origin | Mediterranean regions |
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Origin & History
Native to the Mediterranean basin, the olive is a small evergreen cultivated primarily for its fruit and oil and adapted to climates with mild, dry summers and relatively mild winters. It tolerates a range of soils, including rocky, well-drained ground, and its narrow, gray-green leaves are collected for herbal use, often in spring after morning dew has evaporated.
The olive has long been a cultural symbol of peace, honor and longevity across Mediterranean societies. Ancient writers and herbalists recorded uses of the leaves and fruit for a range of ailments, including fever and digestive complaints, and olive products have played roles in cuisine, ritual and medicine across many cultures. Modern research has examined olive leaf compounds for cardiovascular and metabolic effects, while individual responses and traditional practices vary by region.
Composition & Active Compounds
The olive is a small evergreen tree with a twisted, grey-barked trunk, narrow grey‑green leaves that are silvery beneath, small greenish flowers and fleshy single‑seed fruits (olives). Its leaves and fruit contain a mix of secoiridoids, phenolic compounds, flavonoids and triterpenes that define the plant’s phytochemical profile and are the basis for most olive-derived supplements and extracts. Oleuropein, a secoiridoid concentrated in the leaves, is the primary marker compound in most olive leaf preparations.
- Oleuropein: a secoiridoid abundant in olive leaves and a common chemical marker in extracts
- Secoiridoids: a class of bitter glycosides present in leaves, including oleuropein
- Oleanolic acid: a triterpenoid found in olive tissues contributing to the plant’s chemical complexity
- Luteolin: a flavonoid present in leaves
- Tyrosol: a simple phenolic compound found in olive and olive oil
- Hydroxytyrosol: a phenolic derivative occurring in olives and their preparations
- Gallic acid: a phenolic acid reported among the leaf constituents
Properties & Effects
Olive leaves and fruit have a long history of use for cardiovascular and metabolic concerns, and traditional uses also include diuretic and general tonic applications. Research is strongest for olive leaf preparations’ potential to support healthy blood pressure.
- Cardioprotective: research suggests it may support heart and circulatory health.
- Hypotensive: may support healthy blood pressure levels.
- Hypoglycemic: may support healthy blood glucose regulation.
- Hypocholesterolemic: may support healthy cholesterol levels.
- Antioxidant: may support the body’s antioxidant defenses and help counter oxidative stress.
- Anti-inflammatory: may support a reduction in mild inflammatory responses.
- Diuretic: traditionally used to promote urine output and relieve mild fluid retention.
Dosage & How to Use
Typical preparations and dosing for olive leaf are given below.
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Safety, Side Effects & Contraindications
As a precaution, people who are pregnant or breastfeeding should consult a healthcare professional before using olive leaf preparations. The facts indicate that the active constituents in olive leaves are generally well tolerated, but individual responses can vary.
No major adverse effects have been reported in the provided information; however, mild or idiosyncratic reactions are possible and any new supplement should be started with care and professional guidance when appropriate. The provided facts do not list specific drug interactions or condition-based contraindications beyond pregnancy and lactation.
- Pregnancy and breastfeeding: seek medical advice before use.
Consult a healthcare professional before use; pregnant or breastfeeding people should seek medical advice and anyone on blood pressure or glucose medications should check for potential interactions.