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Olives
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Category

Herbs & Supplements

Synonyms

Olea europae, Oleaceae (family).

Background

Olive leaves come from the olive tree (Olea europae), a native of the Mediterranean. Although olives and olive oil are used as foods, olive leaf is primarily used medicinally or as a tea.

Laboratory studies indicate that olive leaf may be beneficial as an antibacterial, antifungal, antiviral, or antioxidant. However, there is insufficient evidence in humans to support the use of olive leaf for any indication.

In the Middle East, olive leaf tea has been used for centuries to treat sore throat, coughs, fevers, high blood pressure, cystitis (bladder infection), and gout (foot inflammation), and to improve general health. Olive leaf poultices have been applied to the skin to treat dermatological conditions, such as boils, rashes, and warts.

Evidence

DISCLAIMER: These uses have been tested in humans or animals. Safety and effectiveness have not always been proven. Some of these conditions are potentially serious, and should be evaluated by a qualified healthcare provider.

Tradition

WARNING: DISCLAIMER: The below uses are based on tradition, scientific theories, or limited research. They often have not been thoroughly tested in humans, and safety and effectiveness have not always been proven. Some of these conditions are potentially serious, and should be evaluated by a qualified healthcare provider. There may be other proposed uses that are not listed below.

Dosing

Adults (18 years and older):

There is no proven safe or effective dose for olive leaf in adults.

Children (younger than 18 years):

There is no proven safe or effective dose for olive leaf in children.

Safety

DISCLAIMER: Many complementary techniques are practiced by healthcare professionals with formal training, in accordance with the standards of national organizations. However, this is not universally the case, and adverse effects are possible. Due to limited research, in some cases only limited safety information is available.

Allergies

Avoid in individuals with a known allergy or hypersensitivity to olive, olive leaf (Olea europaea), its constituents, or related members of the Oleaceae family.

Side Effects and Warnings

There are very few reports of olive leaf and its adverse effects. There are currently no high quality studies available on the medicinal applications of olive leaf. Use cautiously in patients taking antiviral medications as olive leaf may have antiviral properties.

Pregnancy and Breastfeeding

Olive leaf is not recommended in pregnant or breastfeeding women due to a lack of available scientific evidence.

Interactions

Interactions with Drugs

Although not well studied in humans, olive leaf water extract may have antibacterial, antioxidant, or antifungal properties. Caution is advised when taking olive leaf and other antifungal, antioxidant, or antibacterial agents due to potential additive effects.

Based on preliminary study, olive leaf extracts may have antiviral effects, and may aid in inhibiting HIV-1 replication. Caution is advised when using olive leaf with antiviral agents or agents used for HIV.

Interactions with Herbs and Dietary Supplements

Although not well studied in humans, olive leaf water extract may have antibacterial, antioxidant, or antifungal properties. Caution is advised when taking olive leaf and other antifungal, antioxidant, or antibacterial herbs or supplements due to potential additive effects.

Taking elderberry extract and olive leaf extract may reduce viral loads. Although the interaction may be a positive one, caution is advised in patients taking elderberry or other herbs with potential antiviral effects, due to additive effects.

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