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Showing 1–24 of 33 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Extra virgin olive oil Clear all
Completed Not applicable Interventional Results available

Nuts and Oil Pilot Study

NCT04361617
View directory record Official record
Conditions
Metabolic Syndrome
Interventions
Daily consumption of tree nuts and extra virgin olive oil
Behavioral
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
35 Years and older
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 17, 2023 · Synced Sep 25, 2026, 4:37 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Essential Oil-Based Product System for Digestive Support

NCT07653815
View directory record Official record
Conditions
Healthy
Interventions
essential oil supplement, Essential Oil, Placebo supplement, placebo essential oil
Dietary Supplement · Other
Lead sponsor
dōTERRA International
Industry
Eligibility
18 Years to 45 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Pleasant Grove, Utah
Source: ClinicalTrials.gov public record
Updated Jun 16, 2026 · Synced Sep 25, 2026, 4:37 AM EDT
Completed Not applicable Interventional

Unsaturated Fatty Acids Enriched-diet to Improve Cardiorespiratory Fitness, Metabolic Flexibility and Glucose Tolerance in Obese Patients

NCT03310099
View directory record Official record
Conditions
Heart Failure With Normal Ejection Fraction, Obesity
Interventions
Increasing daily unsaturated fatty acid consumption
Behavioral
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 17, 2019 · Synced Sep 25, 2026, 4:37 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of a Modified Ketogenic-Mediterranean Diet on Alzheimer's Disease

NCT02984540
View directory record Official record
Conditions
Mild Cognitive Impairment, Insulin Resistance
Interventions
Low-Carbohydrate Diet, Low-Fat Diet
Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
50 Years to 85 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 27, 2025 · Synced Sep 25, 2026, 4:37 AM EDT
Completed Not applicable Interventional

Plant-Based, American Heart Assoc. or Mediterranean Diets In 9-18 yo With BMI >95%, Cholesterol >169 and Their Parents

NCT02857543
View directory record Official record
Conditions
Obesity, Hypercholesterolemia, Cardiovascular Disease
Interventions
Plant-Based Diet, American Heart Association Diet, Mediterranean Diet
Other
Lead sponsor
The Cleveland Clinic
Other
Eligibility
9 Years to 18 Years
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 14, 2021 · Synced Sep 25, 2026, 4:37 AM EDT
Completed Not applicable Interventional

Unsaturated Fatty Acids to Improve Cardiorespiratory Fitness in Obesity and HFpEF

NCT03966755
View directory record Official record
Conditions
Obesity, Heart Failure With Normal Ejection Fraction
Interventions
UFA dietary recommendations
Behavioral
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Jul 2, 2024 · Synced Sep 25, 2026, 4:37 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Multicenter Pilot Study to Evaluate the Effect of EVOO on Lipid Parameters

NCT04760093
View directory record Official record
Conditions
Cardiovascular Diseases
Interventions
Low polyphenol concentration extra virgin olive oil (EVOO), High polyphenol concentration extra virgin olive oil (EVOO)
Dietary Supplement
Lead sponsor
Ralph Hamill
Other
Eligibility
18 Years and older
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
3
States / cities
Brunswick, Maine • Rockport, Maine • Scarborough, Maine
Source: ClinicalTrials.gov public record
Updated Mar 23, 2023 · Synced Sep 25, 2026, 4:37 AM EDT
Completed Not applicable Interventional

Effect of Sunflower Lecithin Supplementation on Meibomian Gland Function in Adults With Dry Eye Disease

NCT06058559
View directory record Official record
Conditions
Dry Eye Disease, Meibomian Gland Dysfunction
Interventions
Sunflower lecithin, Olive oil
Dietary Supplement
Lead sponsor
George Washington University
Other
Eligibility
18 Years and older
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Mar 14, 2024 · Synced Sep 25, 2026, 4:37 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Post-prandial Effects of Extra Virgin Olive Oil on Endothelial Function in Adults at Risk for Type 2 Diabetes

NCT04025281
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
Extra Virgin Olive Oil, Refined Olive Oil
Other
Lead sponsor
Griffin Hospital
Other
Eligibility
25 Years to 75 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Derby, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 29, 2020 · Synced Sep 25, 2026, 4:37 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Efficacy of Fish Oil or Olive Oil Supplementation on the Health Effects of Ozone Exposure in Healthy Young Subjects

NCT03395119
View directory record Official record
Conditions
Healthy, Dietary Supplement
Interventions
Ozone, Fish Oil, Olive Oil
Drug · Dietary Supplement
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 35 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 14, 2021 · Synced Sep 25, 2026, 4:37 AM EDT
Completed Not applicable Interventional

A Mediterranean Diet Nutrition Education Program for the Reduction of Cardiovascular Disease Risk in the Southeastern U.S.

NCT03683134
View directory record Official record
Conditions
Cardiovascular Diseases, Cardiovascular Risk Factor, Obesity
Interventions
Mediterranean diet, Olive oil and mixed nuts, American Heart Association
Behavioral · Dietary Supplement
Lead sponsor
Auburn University
Other
Eligibility
19 Years and older
Enrollment
58 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
1
States / cities
Auburn, Alabama
Source: ClinicalTrials.gov public record
Updated Sep 26, 2018 · Synced Sep 25, 2026, 4:37 AM EDT
Completed Not applicable Interventional

Med-South Lifestyle Program for Pregnancy

NCT06374199
View directory record Official record
Conditions
Pregnancy Complications
Interventions
Med-South Lifestyle Intervention for Pregnancy--Arm 1, Med-South Lifestyle Intervention for Pregnancy--Arm 2
Behavioral
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 21, 2025 · Synced Sep 25, 2026, 4:37 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effects of EGCG-Enhanced Extra Virgin Olive Oil on Endothelial Function

NCT00865787
View directory record Official record
Conditions
Atherosclerosis
Interventions
Not listed
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
83 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 11, 2011 · Synced Sep 25, 2026, 4:37 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Cardiovascular Effects of EVOO in Healthy Reproductive-aged Women

NCT03820336
View directory record Official record
Conditions
Hypertension, Vascular Stiffness
Interventions
Extra Virgin Olive Oil, Control Oil
Dietary Supplement
Lead sponsor
University of Vermont Medical Center
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Apr 16, 2019 · Synced Sep 25, 2026, 4:37 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of a Novel Supplement on Glycemic Variability Measured by Continuous Glucose Monitoring

NCT05832463
View directory record Official record
Conditions
Healthy
Interventions
Carbohydrate blocking supplement (CBS), Placebo capsule
Dietary Supplement
Lead sponsor
dōTERRA International
Industry
Eligibility
18 Years to 65 Years
Enrollment
43 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Pleasant Grove, Utah
Source: ClinicalTrials.gov public record
Updated Apr 26, 2023 · Synced Sep 25, 2026, 4:37 AM EDT
Completed Not applicable Interventional

Auburn University Research on Olive Oil for Alzheimer's Disease (AU-ROOAD)

NCT03824197
View directory record Official record
Conditions
Alzheimer Disease, Cerebral Amyloid Angiopathy
Interventions
EVOO, OO
Other
Lead sponsor
Auburn University
Other
Eligibility
55 Years to 75 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Auburn, Alabama
Source: ClinicalTrials.gov public record
Updated Aug 1, 2021 · Synced Sep 25, 2026, 4:37 AM EDT
Active, not recruiting Phase 1 Interventional

NF-1, Nutraceutical Intervention

NCT05363267
View directory record Official record
Conditions
Neurofibromatosis 1
Interventions
curcumin, high phenolic extra virgin olive oil (HP-EVOO)
Dietary Supplement
Lead sponsor
Masonic Cancer Center, University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 22, 2026 · Synced Sep 25, 2026, 4:37 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Oxybutynin and Omega-3 for OAB (Overactive Bladder)

NCT02070042
View directory record Official record
Conditions
Overactive Bladder
Interventions
Omega 3 Fatty Acid, Placebo
Drug
Lead sponsor
TriHealth Inc.
Other
Eligibility
18 Years to 85 Years · Female only
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 30, 2018 · Synced Sep 25, 2026, 4:37 AM EDT
Not yet recruiting Not applicable Interventional

Mediterranean Dietary Intervention for HS

NCT07800416
View directory record Official record
Conditions
Hidradenitis Suppurativa
Interventions
Mediterranean Diet Counseling, Mediterranean Food Support
Behavioral · Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 1, 2026 · Synced Sep 25, 2026, 4:37 AM EDT
Completed Not applicable Interventional Results available

Brain Energy for Amyloid Transformation in Alzheimer's Disease Study

NCT03472664
View directory record Official record
Conditions
Alzheimer Disease, Mild Cognitive Impairment
Interventions
low carbohydrate/high fat diet, low fat/high carbohydrate diet
Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
55 Years to 85 Years
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 2, 2026 · Synced Sep 25, 2026, 4:37 AM EDT
Recruiting Not applicable Interventional

Mediterranean Diet vs no Dietary Intervention for Improving Signs and Symptoms of Psoriasis in Patients Treated With Anti-IL-17 or Anti-IL-23 Inhibitors

NCT06399432
View directory record Official record
Conditions
Psoriasis
Interventions
Mediterranean Diet
Behavioral
Lead sponsor
University Hospitals Cleveland Medical Center
Other
Eligibility
18 Years to 94 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 3, 2026 · Synced Sep 25, 2026, 4:37 AM EDT
Not yet recruiting Not applicable Interventional

Olive Oil Supplementation for Heart Failure With Reduced Ejection Fraction

NCT07644806
View directory record Official record
Conditions
Heart Failure With Reduced Ejection Fraction (HFrEF)
Interventions
Extra-virgin olive oil
Other
Lead sponsor
Old Dominion University
Other
Eligibility
18 Years to 85 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Jun 11, 2026 · Synced Sep 25, 2026, 4:37 AM EDT
Completed Not applicable Interventional

Targeting Trimethylamine N-Oxide for Cardiovascular Health In Liver Transplant Recipients

NCT06043531
View directory record Official record
Conditions
Liver Transplant
Interventions
Experimental: EVOO
Other
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years and older
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Jan 21, 2026 · Synced Sep 25, 2026, 4:37 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

MyVitalC: Sleep and Everyday Headache Management

NCT07477236
View directory record Official record
Conditions
Sleep, Headaches
Interventions
MyVitalC (ESS60 in Extra Virgin Olive Oil)
Dietary Supplement
Lead sponsor
Efforia, Inc
Industry
Eligibility
Not listed
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 16, 2026 · Synced Sep 25, 2026, 4:37 AM EDT