What it is: Olive leaves are the foliage of the Olea europaea (olive) tree and are commonly processed into concentrated extracts standardized for active plant compounds like oleuropein.
What it does: Olive leaf extract is known for its antioxidant and anti-inflammatory properties and is widely used to support heart and metabolic health by helping maintain healthy blood pressure and blood sugar levels.
How it is used: Olive leaf is most often taken in formulas aimed at cardiovascular support, healthy circulation, metabolic balance, and immune health.
Natural sources and supplement forms: Olive leaves occur naturally on olive trees and are not typically consumed directly as food. Supplements may provide whole leaf powder or standardized extracts (often for oleuropein content), available in capsules, tablets, or liquid tinctures.
Why it appears in supplement formulas: Supplement brands use olive leaf extract for its bioactive phytonutrients, especially oleuropein, which are thought to help support vascular tone, cholesterol health, and the body's response to oxidative stress.
What to know before use: Olive leaf supplements are generally well tolerated, but people taking blood pressure or blood sugar medications should consult a healthcare provider due to possible additive effects.
Ingredient guide
