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Showing 1–24 of 37 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: DHA Supplements Clear all
Recruiting Not applicable Interventional Accepts healthy volunteers

A Study of a Dietary Supplement on Serum Biomarkers in Children

NCT07385144
View directory record Official record
Conditions
Nutritional Status, Serum Biomarkers
Interventions
Dietary Supplement (Kids Multi & Omegas)
Dietary Supplement
Lead sponsor
SF Research Institute, Inc.
Network
Eligibility
4 Years to 15 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Feb 3, 2026 · Synced Sep 7, 2026, 3:14 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Omega-3 Fatty Acid Supplementation to Prevent Preterm Birth in High Risk Pregnancies

NCT00135902
View directory record Official record
Conditions
Preterm Birth
Interventions
17 alpha-Hydroxyprogesterone Caproate and Omega-3 supplement, 17 alpha-hydroxy progesterone caproate and Placebo supplement
Drug
Lead sponsor
The George Washington University Biostatistics Center
Other
Eligibility
Female only
Enrollment
800 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2008
U.S. locations
12
States / cities
Birmingham, Alabama • Chicago, Illinois • Detroit, Michigan + 9 more
Source: ClinicalTrials.gov public record
Updated Jul 11, 2019 · Synced Sep 7, 2026, 3:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Epithelial Healing and Visual Outcomes Using Omega-3 Therapy Before and After Photorefractive Keratectomy (PRK) Surgery

NCT01059019
View directory record Official record
Conditions
Refractive Error
Interventions
Omega-3 Fatty Acid Supplements
Dietary Supplement
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 28 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Jun 20, 2013 · Synced Sep 7, 2026, 3:14 PM EDT
Completed Phase 4 Interventional Results available

Evaluating the Effectiveness of Fish Oil Supplements at Reducing the Recurrence of Atrial Fibrillation

NCT00552084
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Fish oil, Placebo
Drug
Lead sponsor
Vanderbilt University
Other
Eligibility
21 Years and older
Enrollment
190 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2014
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 2, 2014 · Synced Sep 7, 2026, 3:14 PM 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 7, 2026, 3:14 PM EDT
Completed Phase 2 Interventional Results available

Fatty Acid Supplementation in Children With ASD

NCT03550209
View directory record Official record
Conditions
Autism Spectrum Disorder
Interventions
LCPUFA Oil Supplement, Canola Oil Placebo
Drug · Dietary Supplement
Lead sponsor
Sarah Keim
Other
Eligibility
2 Years to 6 Years
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 2, 2021 · Synced Sep 7, 2026, 3:14 PM EDT
Completed Phase 2 Interventional Results available

Fatty Acid Supplementation in Children With ASD (Study 2)

NCT04312932
View directory record Official record
Conditions
Autism Spectrum Disorder
Interventions
LCPUFA Oil Supplement, Canola Oil Placebo
Drug · Dietary Supplement
Lead sponsor
Sarah Keim
Other
Eligibility
2 Years to 6 Years
Enrollment
98 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 12, 2025 · Synced Sep 7, 2026, 3:14 PM EDT
Completed Phase 1 Interventional

Effect of DHA Supplements on Macular Function in Patients With Stargardt Macular Dystrophy and Stargardt-like Macular Dystrophy

NCT00060749
View directory record Official record
Conditions
Macular Degeneration
Interventions
Docosahexaenoic Acid (DHA) Dietary Supplement
Drug
Lead sponsor
National Eye Institute (NEI)
NIH
Eligibility
Not listed
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2007
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 7, 2026, 3:14 PM EDT
Recruiting Early Phase 1 Interventional

Tart Cherry and Omega-3's for Aromatase Inhibitor Musculoskeletal Symptoms

NCT06123286
View directory record Official record
Conditions
Breast Cancer, Aromatase Inhibitor Associated Musculoskeletal Symptoms (AIMSS), Joint Pain
Interventions
Tart Cherry, Omega 3 FA (Fish Oil)
Drug
Lead sponsor
Philip Chang
Other
Eligibility
18 Years and older · Female only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
2
States / cities
Los Angeles, California • Torrance, California
Source: ClinicalTrials.gov public record
Updated Aug 3, 2026 · Synced Sep 7, 2026, 3:14 PM EDT
Not listed Phase 1 Interventional Accepts healthy volunteers

DHA Supplements to Improve Insulin Sensitivity in Obese Pregnant Women (The Omega-3 Pregnancy Study)

NCT00865683
View directory record Official record
Conditions
Overweight and Obesity, Insulin Resistance, Diabetes, Gestational, Hypertension in Pregnancy, Pre-Eclampsia
Interventions
DHA Supplements, Placebo Supplements
Dietary Supplement
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years to 40 Years · Female only
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 14, 2009 · Synced Sep 7, 2026, 3:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Folic Acid Supplementation in Pregnant Women: Dose Response

NCT02124642
View directory record Official record
Conditions
Pregnancy
Interventions
Folic acid, 400 mcg/day, Folic acid 800 mcg/day
Dietary Supplement
Lead sponsor
University of Georgia
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2017
U.S. locations
1
States / cities
Athens, Georgia
Source: ClinicalTrials.gov public record
Updated Mar 4, 2018 · Synced Sep 7, 2026, 3:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Bioavailability of Fish Oils: Emulsified Versus Capsular Triglyceride

NCT01488747
View directory record Official record
Conditions
Healthy Adults
Interventions
Coromega Omega-3 Squeeze, Coromega Nectar, Barleans Swirl, Nordic Omega-3 Softgel
Dietary Supplement
Lead sponsor
USDA Grand Forks Human Nutrition Research Center
Federal
Eligibility
18 Years to 60 Years
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2016
U.S. locations
1
States / cities
Grand Forks, North Dakota
Source: ClinicalTrials.gov public record
Updated Aug 2, 2018 · Synced Sep 7, 2026, 3:14 PM EDT
Withdrawn Phase 2 Interventional

Chronic Fatigue Syndrome: A Presumptive Mitochondrial Disorder

NCT01471652
View directory record Official record
Conditions
Chronic Fatigue Syndrome
Interventions
Nutraceutical supplements, Placebo
Drug
Lead sponsor
Columbia University
Other
Eligibility
25 Years to 55 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 12, 2015 · Synced Sep 7, 2026, 3:14 PM EDT
Completed Phase 2 Interventional Results available

Fish Oil Supplementation, Nutrigenomics and Colorectal Cancer Prevention

NCT01661764
View directory record Official record
Conditions
Colorectal Adenomatous Polyps
Interventions
Eicosapentanoic acid and docosahexanoic acid, Oleic Acid
Drug
Lead sponsor
Vanderbilt University
Other
Eligibility
40 Years to 79 Years
Enrollment
141 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jun 7, 2018 · Synced Sep 7, 2026, 3:14 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effects of Omega-3 Fatty Acids in Ambient Air Pollution Exposure in Healthy Adults

NCT02921048
View directory record Official record
Conditions
Health Effects of Ambient Air Pollution
Interventions
omega-3 fatty acids
Dietary Supplement
Lead sponsor
U.S. EPA Human Studies Facility
Federal
Eligibility
25 Years to 55 Years
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated May 9, 2022 · Synced Sep 7, 2026, 3:14 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Fish Oil and Alpha Lipoic Acid in Treating Alzheimer's Disease

NCT00090402
View directory record Official record
Conditions
Alzheimer's Disease, Oxidative Stress, Dementia, Hyperlipidemia, Inflammation
Interventions
Fish Oil, Lipoic Acid, Fish Oil Placebo, Lipoic Acid Placebo
Dietary Supplement · Other
Lead sponsor
Oregon Health and Science University
Other
Eligibility
55 Years and older
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2007
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jul 20, 2017 · Synced Sep 7, 2026, 3:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Ranger Resilience and Improved Performance on Phospholipid Bound Omega-3's

NCT02908932
View directory record Official record
Conditions
Nutrition, Fatty Acids, Omega-3, Cognition, Resilience, Psychological, Psychology, Military
Interventions
Phospholipid-bound omega-3 supplement, Placebo supplement
Dietary Supplement
Lead sponsor
Medical University of South Carolina
Other
Eligibility
Not listed
Enrollment
555 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
3
States / cities
Fort Benning, Georgia • Bethesda, Maryland • Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jul 4, 2018 · Synced Sep 7, 2026, 3:14 PM EDT
Terminated Not applicable Interventional

Omega-3 Fatty Acid Supplements and Dry Eye

NCT01213342
View directory record Official record
Conditions
Keratoconjunctivitis Sicca
Interventions
Omega-3 Fatty Acid, Soybean Soft Gels
Dietary Supplement
Lead sponsor
Ohio State University
Other
Eligibility
18 Years and older
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 19, 2012 · Synced Sep 7, 2026, 3:14 PM EDT
Completed Phase 2 Interventional Results available

COVID-19 Anosmia Study

NCT04495816
View directory record Official record
Conditions
Anosmia, Covid19
Interventions
Omega-3 Fatty Acid Supplement, Placebo/Control
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
139 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 22, 2023 · Synced Sep 7, 2026, 3:14 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Investigating the Effects of Nutrition on the Maturation of Brain Networks Associated With Memory in Infants

NCT02457078
View directory record Official record
Conditions
Healthy
Interventions
Postnatal Dietary Supplement, Control Supplement
Dietary Supplement
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
18 Years and older · Female only
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
Urbana, Illinois
Source: ClinicalTrials.gov public record
Updated May 3, 2017 · Synced Sep 7, 2026, 3:14 PM EDT
Completed Phase 3 Interventional Results available

Dry Eye Assessment and Management Study

NCT02128763
View directory record Official record
Conditions
Dry Eye
Interventions
Omega-3 supplements, Placebo
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
535 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
27
States / cities
Scottsdale, Arizona • Azusa, California • Berkeley, California + 21 more
Source: ClinicalTrials.gov public record
Updated Jul 18, 2022 · Synced Sep 7, 2026, 3:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Evaluating the Effects of Omega-3 Fatty Acids on Heart Disease and Behavior

NCT00663871
View directory record Official record
Conditions
Cardiovascular Diseases, Mood Disorders, Inflammation
Interventions
Fish Oil, Soybean Oil (Placebo)
Dietary Supplement
Lead sponsor
University of Pittsburgh
Other
Eligibility
30 Years to 55 Years
Enrollment
272 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2012
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 10, 2021 · Synced Sep 7, 2026, 3:14 PM EDT
Completed Phase 4 Interventional Results available

Modulation of Esophageal Inflammation in Barrett's Esophagus by Omega-3 Fatty Acids

NCT01733147
View directory record Official record
Conditions
Barrett's Esophagus, Obesity
Interventions
Omega-3 polyunsaturated fatty acids, Placebo
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 85 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2018
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 10, 2022 · Synced Sep 7, 2026, 3:14 PM EDT
Completed Not applicable Interventional

Memory Improvement With Docosahexaenoic Acid Study (MIDAS)

NCT00278135
View directory record Official record
Conditions
Age-Related Cognitive Decline, Age-Related Memory Disorders
Interventions
DHA (nutritional supplement) or placebo
Dietary Supplement
Lead sponsor
dsm-firmenich Switzerland AG
Industry
Eligibility
55 Years and older
Enrollment
485 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
14
States / cities
Mesa, Arizona • San Diego, California • Vista, California + 11 more
Source: ClinicalTrials.gov public record
Updated May 18, 2014 · Synced Sep 7, 2026, 3:14 PM EDT