Educational reference only · Not medical advice · Always consult a qualified healthcare professional
Olive Leaf

Olea europaea

Olive Leaf

Oleaceae

Evidence: LimitedCaffeine Free MediterraneanAntioxidant TraditionsImmune TraditionsVitality Traditions
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Identity

Common Name
Olive Leaf
Scientific Name
Olea europaea
Botanical Family
Oleaceae
Native Region
Mediterranean basin
Cultivation Regions
Mediterranean, Middle East, Australia, California
Plant Parts Used
Leaves
Synonyms
Olive Leaves, Olea Folium
Caffeine Level
Caffeine Free

An evergreen tree with narrow silvery-grey-green leathery leaves, clusters of small white flowers, and purple-black olives; the leaves are the medicinal part, rich in oleuropein.

Historical Background

The olive branch has symbolized peace across the Mediterranean for millennia, but the olive leaf itself was also a healing herb in Egyptian, Greek, and Roman traditions. Brewed as a mild, green tea, olive leaf has become a popular antioxidant infusion in modern herbal practice.

Earliest recorded uses: Ancient Egyptian, Greek, and Mediterranean use; olive leaves symbolized peace and healing for millennia.

Traditional preparations:

  • Leaf infusion
  • Mediterranean antioxidant blend
  • Green-tea pairing

Traditional Uses

These uses document historical traditions and do not imply proven effectiveness.

Traditional European Herbalism

Antioxidant, fever, and wound tea; symbol of peace.

Modern Herbalism

Antioxidant and cardiovascular-support tea.

Flavor & Aroma

MildGreenHerbalSlightly Astringent

Aroma: Mild, green, herbal, slightly astringent

Tea Information

Suitable for Tea
Yes
Preparation Methods
Infusion
Steeping Temperature
195-200°F (90-93°C)
Steeping Time
10-15 minutes
Recommended Vessel
Teapot
Blends Well With
Green Tea, Lemon Balm, Honey, Jasmine, Mint
195-200°F (90-93°C) 10-15 minutes

Safety & Cautions

Contraindications
Generally safe in tea amounts; caution with antihypertensive and antidiabetic drugs; discontinue before surgery.
Drug Interactions
May lower blood pressure and blood sugar (caution with antihypertensive/antidiabetic drugs); consult a clinician.
Pregnancy
Generally regarded as safe in tea amounts.
Children
Mild infusions acceptable in small amounts.
Allergies
Possible in those sensitive to Oleaceae; rare.
Known Adverse Effects
Generally well tolerated; may cause mild GI upset or allergic reactions; may lower blood pressure.

Research Summary

Evidence Level: Limited

Olive leaf has a tradition as an antioxidant and cardiovascular-support tea, rich in oleuropein. Clinical evidence is limited; small trials suggest modest effects on blood pressure, but it is not a treatment for hypertension, infection, or any disease.

Evidence levels reflect the currently available scientific literature and may change as new research emerges. Where evidence is limited or conflicting, this is stated plainly.

References & Sources

References & Sources

  1. PubMed · Olive leaf (oleuropein) review (2020)
  2. EMA HMPC · Oleae folium assessment (2016)

Related Herbs

Soothing Brews

An educational encyclopedia preserving the history, traditions, and modern evidence behind herbs used in teas and infusions. Inspired by antique botanical manuscripts.

Steeped in tradition, grounded in honesty.

Please Note

This is an educational reference, not a medical resource. Historical use does not imply effectiveness. Natural does not always mean safe. Consult a qualified healthcare professional before using herbs, especially if pregnant, nursing, or taking medications.

© 2026 Soothing Brews · For educational purposes only.

Preferred sources: NIH ODS · NCCIH · MSK Herbs · PubMed · WHO · EMA · German Commission E · Cochrane