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Olive leaf extract

Blood pressure · Antiviral · Antioxidant
Tier 2 — Promising

What it is

Helps lower blood pressure through its active compound oleuropein. A 2024 meta-analysis of 12 trials found it significantly reduces blood pressure by approximately 5–6 mmHg systolic. Oleuropein also has confirmed antiviral and anti-inflammatory activity in lab studies. If you are already on blood pressure medication, the combined effect may drop pressure too low — monitor closely.

Efficacy
3/5
Safety
4/5
Research
3/5
Onset
2/5
Cost
3/5
Drug-int.
3/5

Dose

500–1,000 mg/day standardised extract (15–20% oleuropein); monitor blood pressure if on antihypertensives

Time of day & tips

Take with food at any time of day. If on blood pressure medication, monitor BP closely — effects are additive and may cause dizziness. Split into 2 doses for best results.

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