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3Medicinal

Olive leaf extract

Also sold as Oleuropein

Used for blood pressure and blood sugar support, with small but fairly consistent trial results.

TrustedSupp Tier System™ · Tier 3Take as a defined course

Evidence strength

38/100Limited
WEAKLIMITEDMODERATESTRONGVERY STRONG

What the evidence supports: modest blood pressure and glucose reductions in small trials.

This scores how well-supported the claim above is — not how much benefit you personally would get. A high score on a narrow claim does not extend to everything the product is marketed for.

How long to take it

Course-based, 8–12 weeks with monitoring.

Who it's actually for

People with mildly raised blood pressure working alongside lifestyle changes.

Safe upper limit

Unverified
No formal upper limit; 500–1,000 mg extract daily in trials
Generally well tolerated. It can add to the effect of blood pressure and diabetes medication.
No source or citation attached yet.

Interactions to know about

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Practical notes

  • Monitor blood pressure if you already take medication for it.
  • Oleuropein content varies between products.