Olive Leaf Extract

Dr. Sarah Mitchell
By Dr. Sarah Mitchell
Sep 22, 2026
1 min read

Olea europaea

Also known as: Olive Leaf, Olea Europaea Leaf Extract

Olive Leaf Extract is a polyphenol-rich antioxidant derived from olive tree leaves. It is widely used to support heart health, immune function, and overall cellular wellness.

Olive Leaf Extract

Discover Olive Leaf Extract benefits and side effects, common supplement forms, standard dosage guidelines, and safe usage tips.

Olive Leaf Extract is derived from the leaves of the olive tree, botanically known as Olea europaea. While olive oil from the fruit has long been celebrated in Mediterranean diets, the leaves contain a higher concentration of unique polyphenolic compounds. The primary active component is oleuropein, a potent antioxidant responsible for many of the plant's traditional health applications.

Today, people turn to Olive Leaf Extract supplements to support cardiovascular wellness, maintain healthy blood pressure levels already within normal range, and encourage immune system defense. Its strong antioxidant profile helps neutralize free radicals and reduce oxidative stress throughout the body. Because Olive Leaf Extract can interact with certain medications, including blood pressure and diabetes drugs, it is always recommended to consult a healthcare provider before starting a new regimen.

Olive Leaf Extract: Quick Facts

Scientific Name
Olea europaea
Category
Antioxidants
Key Compound
Oleuropein
Used For
Cardiovascular Support, Immune Health, Antioxidant Protection
Available Forms
Capsules, Softgels, Liquid Extract, Powder, Tea
Research Dosage
A typical daily dosage of standardized Olive Leaf Extract ranges from 500 mg to 1,000 mg, standardized to oleuropein content.
Where It's Found
Leaves of the olive tree (Olea europaea), native to the Mediterranean region

Common Forms and Standard Dosage

Capsules
Softgels
Liquid Extract
Powder
Tea

FORM TYPICAL DOSAGE RANGE
Standardized Capsules 500 mg - 1,000 mg daily
Liquid Extract 1 mL - 2 mL daily
Softgels 500 mg daily
Herbal Tea 1 - 2 cups daily

Primary Health Benefits of Olive Leaf Extract

Olive Leaf Extract

  • Provides potent antioxidant support to combat cellular oxidative stress
  • Supports cardiovascular function and healthy circulation
  • Helps maintain healthy blood pressure levels already within normal range
  • Encourages robust immune system response and seasonal health
  • Promotes overall arterial and metabolic wellness

Frequently Asked Questions

The main benefits of Olive Leaf Extract include strong antioxidant defense, cardiovascular support, and immune health encouragement. Mild side effects may include digestive discomfort, nausea, or headache. Always start with a lower dose to assess individual tolerance.

Most standard supplements are standardized to contain between 15% and 20% oleuropein. Looking for standardized extract labels ensures consistent quality and potency across doses.

Yes, Olive Leaf Extract may interact with blood pressure medications and blood sugar lowering medications because of its potential effects on circulation and glucose levels. Speak with your physician prior to supplementation if taking prescription drugs.

Olive Leaf Extract can generally be taken with meals to minimize potential stomach upset. Splitting your daily dose between morning and evening can also help maintain steady levels in the body.

While short-term use is widely considered safe for healthy adults, long-term human safety studies are limited. Periodic breaks or consulting a healthcare professional for ongoing daily use is recommended.