Compound Profile
Olive Leaf Extract
Olive leaf extract reduces blood pressure comparably to low dose captopril.
Last reviewed: •1 human studies cited
C PreliminaryMonograph visual
Olive Leaf Extract
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Quick Stats
Evidence level
Preliminary evidence
Typical onset
Varies by prep
Safety rating
Use extra caution: Interaction risk
Best for
NO Antioxidant, Vascular Function, Oxidative Stress
Avoid / review if
Known Hypersensitivity To Olive Leaf Or Olive Products, Anticoagulant Or Antiplatelet Medications Due To Increased Bleeding Risk
Safety & Cautions
Review before use if any apply: Known Hypersensitivity To Olive Leaf Or Olive Products, Anticoagulant Or Antiplatelet Medications Due To Increased Bleeding Risk.
Evidence-based safety
Caution when combined
These pairings share a flagged risk mechanism. They are additive-effect cautions derived from contraindication data, not confirmed clinical interactions. Consult a clinician before combining.
High-Priority Caution
147 flagged pairingsBleeding / anticoagulant risk
High-Priority Caution
147 flagged pairingsBleeding / anticoagulant risk
Browse the grouped cautions below. The list scrolls inside this card when long.
Bleeding / anticoagulant risk
- aescin
- Aged Garlic Extract
- ajoene
- Ajwain
- Allicin
- Garlic
- American Ginseng Extract
- Andrographis
- Angelica Archangelica
- Angelica Dahurica
- Angelica Pubescens
- Angelica Root
- Angelica Sinensis
- Arjuna
- Artemisia Capillaris
- Artichoke
- Ashitaba
- Ashitaba Extract
- Astaxanthin
- Berberis
- Black Seed
- Black Seed Oil
- Blueberry
- Boldo
- Boswellia
- Capsicum
- Caraway
- Carnitine L Tartrate
- Cayenne
- Chamomile
- Chinese Skullcap
- Chuanxiong
- Cissus
- Citicoline
- Clove
- Cnidium Monnieri
- Coleus Forskohlii
- Commiphora Mukul
- Coenzyme Q10
- Cordyceps
- Cranberry (Vaccinium macrocarpon)
- crocetin
- crocin
- cryptotanshinone
- Curcuma Wenyujin
- Curcumin
- Damiana
- Danshen
- Devils Claw Extract
- Dong Quai
- EGCG
- Epimedium
- Epimedium Brevicornum
- Evening Primrose (Oenothera biennis)
- Fenugreek
- Fenugreek Extract
- ferulic acid
- Feverfew
- Fisetin
- forskolin
- Fraxinus Rhynchophylla
- Fucoxanthin
- Galangal
- Reishi
- Garcinia Mangostana
- Garlic (Allium sativum)
- Garlic Aged Extract
- Garlic Extract
- Ginger (Zingiber officinale)
- Ginkgo
- Ginkgo Biloba Extract
- Ginkgo Extract EGb 761
- Panax Red Ginseng
- Panax White Ginseng
- ginsenoside rg3
- Glucosamine
- Goldenseal
- Lion's Mane
- Holy Basil / Tulsi (Ocimum tenuiflorum)
- Horse Chestnut
- hydroxytyrosol
- Japanese Knotweed
- Kudzu
- L-Carnitine
- Ligusticum Chuanxiong
- Magnolia
- Mangosteen
- Maral Root
- Chamomile
- Melatonin
- MSM
- Myrtle
- Nettle Root
- Nigella Sativa
- Noni
- Notoginseng
- Ocimum Basilicum
- Oregano
- Paeonia Lactiflora
- Asian Ginseng
- Panax Ginseng Extract
- Papaya Leaf
- Pastinaca Sativa
- Pau D'arco
- Perilla
- Phosphatidylserine
- Piper Longum
- Bifidobacterium Probiotic
- Lactobacillus Probiotic
- Probiotics - Bifidobacterium spp.
- Probiotics - Lactobacillus spp.
- Psoralea Corylifolia
- Pycnogenol
- Quercetin
- Quercetin Phytosome
- Red Clover
- Reishi (Ganoderma lucidum)
- Resveratrol
- Rhodiola Extract SHR-5
- Rose Hips
- Rosemary
- Saffron
- Saffron Extract
- Salvia miltiorrhiza
- Saw Palmetto (Serenoa repens)
- Saw Palmetto Extract
- Schisandra Berry
- Schisandra Chinensis
- Scutellaria Baicalensis
- Selaginella Tamariscina
- Soybean
- Syzygium Aromaticum
- Terminalia arjuna
- Thunder God Vine
- Thyme
- Tongkat Ali
- Trans-Resveratrol
- Fenugreek
- Tripterygium Wilfordii
- Turmeric (Curcuma longa)
- Turmeric Curcumin + Piperine
- Valerian
- Vitamin D3 + K2
- Grape
- White Peony
- Willow Bark Extract
- Yarrow
Moderate Caution
191 flagged pairingsBlood-sugar lowering · Blood-pressure effects
Moderate Caution
191 flagged pairingsBlood-sugar lowering · Blood-pressure effects
Browse the grouped cautions below. The list scrolls inside this card when long.
Blood-sugar lowering
- Acarbose
- ajoene
- Allicin
- Aloe Vera
- Alpha-Lipoic Acid
- American Ginseng Extract
- Andrographis
- Anemarrhena Asphodeloides
- Tarragon
- Ashoka
- Astragalus
- Astragalus Membranaceus
- Bael
- Berberis
- Berberis Vulgaris
- Black Seed
- Blueberry
- Buckwheat
- Burdock
- Caraway
- Cichorium Intybus
- Cinnamon
- Cinnamon extract
- Cissus
- Cistanche
- Cistanche Deserticola
- Citrus Bergamia
- Citrus Sinensis
- CJC-1295
- Coenzyme Q10
- Commiphora Mukul
- Coptis
- Coptis Chinensis
- Coriandrum Sativum
- Cornus Officinalis
- Curry Leaf
- D-Mannose
- D-Ribose
- Damiana
- Dandelion
- Dendrobium
- Devils Claw Extract
- Elderberry
- Elecampane
- Eucommia
- Fenugreek
- Fenugreek Extract
- Fingerroot
- Fisetin
- Fucoxanthin
- Garcinia Indica
- Garlic Extract
- Ginkgo Biloba Extract
- Panax Red Ginseng
- Panax White Ginseng
- Glucosamine
- Goldenseal
- Gudmar
- Gymnema
- Holy Basil / Tulsi (Ocimum tenuiflorum)
- Holy Basil Purple
- Holy Basil Seed
- Ipamorelin
- Jujube
- Kuding Tea
- Kudzu
- Banaba
- Luo Han Guo
- Mangifera Indica
- Marshmallow
- MCT Oil
- Bitter Melon
- Morinda Citrifolia
- Moringa
- Morus Alba
- Mulberry Leaf
- Myrtle
- Neem
- Nelumbo Nucifera
- Nettle Root
- Nigella Sativa
- Nicotinamide Mononucleotide
- Notoginseng
- Ocimum Basilicum
- Oregano
- Panax Ginseng Extract
- American Ginseng
- Papaya Leaf
- Phellodendron
- Phellodendron Amurense
- Psyllium
- Pueraria Lobata
- Pycnogenol
- Rehmannia Glutinosa
- Rehmannia Prepared
- Rice Bran
- Rooibos
- Roselle Seed
- Sage
- Salacia
- Semaglutide
- Serenoa Repens
- Shatavari
- Soursop
- Tamarind
- Tirzepatide
- Tongkat Ali
- Fenugreek
- Wild Yam
- Ashwagandha
Blood-pressure effects
- Agmatine sulfate
- ajoene
- Allicin
- American Ginseng Extract
- Andrographis
- Angelica Dahurica
- Astaxanthin
- Astragalus Membranaceus
- Beetroot extract
- Berberis
- Bicarbonate
- Black Seed
- Black Seed Oil
- Brassica Oleracea
- Buckwheat
- Caffeine
- Capsicum
- Caraway
- Chuanxiong
- Citicoline
- Citrus Bergamia
- Cnidium Monnieri
- Coenzyme Q10
- Coffee Cherry
- Coleus Forskohlii
- Hawthorn
- crocetin
- crocin
- Crocus Sativus
- Cymbopogon Citratus
- Dandelion
- Danshen
- Dendrobium
- Devils Claw Extract
- Electrolyte Mix
- Sodium electrolytes
- Eleuthero
- EGCG
- Epimedium
- Epimedium Brevicornum
- Eucommia
- ferulic acid
- forskolin
- Garlic Extract
- Gastrodia
- Panax Red Ginseng
- Panax White Ginseng
- Glycyrrhiza Glabra
- Guarana
- Guayusa
- Hibiscus
- Huperzia Serrata
- L-Tyrosine
- Lemongrass
- Licorice
- Ligusticum Chuanxiong
- Lobelia Inflata
- Luo Han Guo
- Moringa
- Mucuna
- Myristica Fragrans
- Nettle Root
- Nicotiana Glauca
- Nicotiana Tabacum
- Nigella Sativa
- Nicotinamide Mononucleotide
- Notoginseng
- Olive Leaf
- Panax Ginseng Extract
- Parsley
- Poria
- PT-141 (Bremelanotide)
- Punarnava
- Quercetin Phytosome
- Saffron Extract
- Sodium
- Soursop
- Ashwagandha
- Yerba Mate
- Yohimbe
- Yohimbine
Evidence Summary
C PreliminaryEvidence lens
Early signal that needs stronger human replication before practical claims.
PreliminaryPreliminary evidence
Human clinical evidence: Not the primary signal
Mechanistic / preclinical: Mechanism mapped — Endothelial Function Support · Inflammatory Signaling Modulation · Neuroprotective Activity
Research maturity: Preliminary or mixed — main contexts: NO Antioxidant · Vascular Function · Oxidative Stress
Safety boundary: Safety note available — Review before use if any apply: Known Hypersensitivity To Olive Leaf Or Olive Products, Anticoagulant Or Antiplatelet Medications Due To Increased Bleeding Risk.
This profile cites 1 human study.
Evidence Strength
Confidence estimate based on the design quality and consistency of published clinical trials.
Olive Leaf Extract has a preliminary evidence evidence rating.
AdaptogenStress & MoodLongevity
Citation density
0.3
Sources
1
Effects
3
Research recency
Mixed recency
How evidence grades work
Each grade reflects the strength and consistency of published human evidence — not marketing claims. Grades are based on study count, design quality, effect size, consistency, and recency.
A
Strong
Multiple RCTs, consistent direction, adequate effect size
B
Moderate
Some RCTs or consistent observational data in humans
C
Preliminary / Mixed
Animal or in-vitro only, or conflicting human data
D
Traditional / Theoretical
Traditional use only; no controlled human trials
Clinical Study Summaries (1)Cited studies informing this profile. RCTs and reviews shown first.
How Olive Leaf Extract Works
Simplified mechanism pathway based on preclinical and pharmacological evidence. Does not confirm clinical efficacy.
Mechanism Pathway — How Olive Leaf Extract Works
CompoundTarget / ReceptorMechanismEffect / Outcome
Mechanisms & Biological Pathways▼
Preclinical mechanism details from scientific profiles; these represent plausible pathways but do not guarantee clinical efficacy in humans.
Endothelial Function SupportInflammatory Signaling ModulationNeuroprotective ActivityACE Inhibition (Potential)Endothelial Nitric Oxide ModulationStress Response Modulation
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Related research paths
Compare & Sourcing
Compare side-by-side tradeoffs or verify active marker guidelines.
Review available sources for Olive Leaf Extract
Independent database mapping — evaluated separately from safety and efficacy scores.
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Safety first · Harm reduction
This information is educational and not medical advice. Start low, avoid risky combinations, and consult a licensed clinician before making health decisions—especially if you use medications, have diagnosed conditions, or are pregnant/breastfeeding.
Learn how we evaluate confidence, safety, and intensity on the methodology page.
Editorial Review
Checked against primary sources, cited evidence, and contraindication language before publication. Evidence claims, safety language, and affiliate modules are reviewed independently. Not personal medical advice.
Compound profile context
How to interpret Olive Leaf Extract
Olive Leaf Extract dosage by use case, onset and duration, safety limits, and interactions for no antioxidant, graded against research. Mechanistic Evidence… Use this compound profile to understand mechanism, evidence quality, and practical safety context before comparing products or building a stack. A biochemical pathway connection can be useful for discovery, but it is not the same as proven benefit in humans.
When reviewing Olive Leaf Extract, separate the active molecule from the product category around it. Dose form, absorption, extract standardization, medication interactions, and individual sensitivity can change the real-world risk-benefit picture.
For supplement planning, avoid combining multiple compounds with overlapping sedating, stimulating, serotonergic, blood-pressure, anticoagulant, or liver-metabolism effects unless a qualified clinician has reviewed the context.