Compound or practice · Supplement
Olive Leaf Extract
An oleuropein-rich extract with modest blood-pressure data and antioxidant claims.
- Overall grade
- Grade C
- Last revised
- 1
- graded outcome
- 0
- references listed
A structured monograph in Prometheus's bundled library. Its grades are the monograph's own reading of the evidence, not a peer-reviewed review.
2 at grade C — 2 graded rows
What is known
Each outcome with its grade (how strong the evidence is, A to D), the size of the effect where the entry records one, and how often studies agree.
- Blood pressureEvidence grade C
Modest
Smallmixed
Conditions
How the entry reads its effect on diagnosed conditions: the direction first, then the grade. Never a substitute for the person who treats you.
- Hypertension May improveEvidence grade CModestGrade C
What is uncertain
Read off the same rows as above. Nothing here is added that the entry does not itself record.
- Thin evidence: Blood pressure (grade C).
- Caution with Blood-pressure medications: Additive blood-pressure lowering.
Interactions
Documented pairings with supplements and medicines. A medicine on this list is a conversation for whoever prescribes it.
Blood-pressure medicationsCaution
Additive blood-pressure lowering.
The evidence in words
What it is
Olive leaf extract (oleuropein) is used for blood pressure, immunity, and antioxidant support.
How it works
Oleuropein has antioxidant, vasodilatory, and mild antimicrobial actions.
What the evidence shows
Small trials show modest blood-pressure and lipid improvements; antiviral/immune claims are largely preclinical. Safe, minor.
How to use it
Standardized oleuropein extract daily.
Safety & interactions
Generally safe; additive blood-pressure and glucose lowering. antihypertensives — Additive blood-pressure lowering.
Bottom line
A minor blood-pressure and antioxidant option with limited data. Reasonable adjunct.
How it is used
As the entry records it, from the studies it summarises. Not a recommendation for you — doses that suit a trial population may not suit you.
- Standard
- Standardized oleuropein daily.
Related reading
Entries that share this one's tags or conditions.
- Olive Leaf Extract for Blood pressureEvidence grade C — ModestEvidence grade C
- Grape Seed Extract for Blood pressureEvidence grade C — ModestEvidence grade C
- Green Tea Extract (EGCG)Modest metabolic and cardiovascular benefits from catechins — and a real, if uncommon, liver-toxicity signal at high concentrated doses.Evidence grade C
- Olive Leaf Extract for HypertensionEvidence grade C — ModestEvidence grade C
Sources
This entry lists no references of its own.
Last revised . A grade is this entry's reading of the evidence, not medical advice.