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Showing 1–24 of 88 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: DHA supplement Clear all
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

DHA Supplementation for Lactating Mothers

NCT01732874
View directory record Official record
Conditions
Docosohexaenoic Acid Supplementation of Mothers to
Interventions
Expecta 200 mg, Expecta 1 gram
Drug
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
Up to 45 Years · Female only
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 4, 2021 · Synced Sep 6, 2026, 10:03 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of Docosahexaenoic Acid Supplementation on Biomarkers of Concussion Over the Course of a Year in Canadian National Rugby Players

NCT03582267
View directory record Official record
Conditions
Head Trauma
Interventions
Docosahexaenoic Acid (DHA)
Dietary Supplement
Lead sponsor
Texas Christian University
Other
Eligibility
Not listed
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Fort Worth, Texas
Source: ClinicalTrials.gov public record
Updated Sep 12, 2019 · Synced Sep 6, 2026, 10:03 AM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Bioavailability of Vitamin D(25(OH)D) and Omega-3 Fatty Acid (DHA) Enhanced Chicken

NCT05248737
View directory record Official record
Conditions
Nutrition, Healthy
Interventions
DHA/EPA fortified chicken plus Placebo, non-25(OH)D fortified chicken/eggs plus vitamin D3 supplement, non-DHA bio-enhanced chicken plus supplement DHA Omega-3, 25(OH)D bioenhanced chicken and eggs plus placebo, Dietary Supplement: DHA/EPA fortified eggs plus Placebo, non-DHA bio-enhanced eggs plus supplement DHA Omega-3, non-25(OH)D fortified chicken/eggs plus placebo
Dietary Supplement · Other
Lead sponsor
Cornell University
Other
Eligibility
18 Years to 35 Years
Enrollment
84 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
1
States / cities
Ithaca, New York
Source: ClinicalTrials.gov public record
Updated Mar 31, 2026 · Synced Sep 6, 2026, 10:03 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Omega-3 and Blueberry Supplementation in Age-Related Cognitive Decline

NCT01746303
View directory record Official record
Conditions
Age-related Memory Disorders, Mood Disorders
Interventions
Omega-3 fatty acid, Blueberry powder, Placebo oil, Placebo powder
Dietary Supplement · Other
Lead sponsor
University of Cincinnati
Other
Eligibility
62 Years to 80 Years
Enrollment
94 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2016
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated May 26, 2016 · Synced Sep 6, 2026, 10:03 AM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers Results available

Feasibility Pilot Clinical Trial of Omega-3 Supplement vs. Placebo for Post Covid-19 Recovery Among Health Care Workers

NCT05121766
View directory record Official record
Conditions
COVID-19
Interventions
Omega-3 (EPA+DHA), Placebo
Drug
Lead sponsor
Hackensack Meridian Health
Other
Eligibility
18 Years to 89 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Edison, New Jersey
Source: ClinicalTrials.gov public record
Updated Sep 18, 2024 · Synced Sep 6, 2026, 10:03 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of a Zeaxanthin Intervention on Visuomotor Function

NCT02017418
View directory record Official record
Conditions
Behavior and Behavior Mechanisms
Interventions
zeaxanthin, combinatory supplement
Dietary Supplement
Lead sponsor
University of Georgia
Other
Eligibility
18 Years to 40 Years
Enrollment
102 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Athens, Georgia
Source: ClinicalTrials.gov public record
Updated May 26, 2015 · Synced Sep 6, 2026, 10:03 AM EDT
Completed Phase 4 Interventional Results available

The Impact of Omega Three Fatty Acids on Vascular Function in HIV

NCT01041521
View directory record Official record
Conditions
High Triglyceride Level, HIV Infection
Interventions
Lovaza
Drug
Lead sponsor
Tufts University
Other
Eligibility
18 Years and older
Enrollment
129 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 10, 2020 · Synced Sep 6, 2026, 10:03 AM EDT
Completed Phase 2 Interventional

Oral Docosahexanoic Acid Supplementation in Cystic Fibrosis

NCT00924547
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Docosahexanoic Acid Supplement, Placebo
Dietary Supplement
Lead sponsor
Vanderbilt University
Other
Eligibility
6 Years and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jul 20, 2015 · Synced Sep 6, 2026, 10:03 AM EDT
Not listed Not applicable Interventional

Prospective Study of Adjunctive Carotenoids Plus Anti-oxidants in Anti-VEGF Treated Diabetic Macular Edema

NCT03866005
View directory record Official record
Conditions
Center-involved Diabetic Macular Edema (CI-DME)
Interventions
Diabetes Visual Function Study (DiVFuSS) softgels, canola oil placebo softgels, 2 per day
Dietary Supplement · Other
Lead sponsor
ZeaVision, LLC
Industry
Eligibility
18 Years to 80 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
2
States / cities
Olympia, Washington • Tacoma, Washington
Source: ClinicalTrials.gov public record
Updated Jul 1, 2020 · Synced Sep 6, 2026, 10:03 AM EDT
Completed Not applicable Interventional

Fish Oil and HMB Supplementation in COPD

NCT03796455
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease
Interventions
Capsule + Powder supplementation, stable tracer infusion
Dietary Supplement · Other
Lead sponsor
Texas A&M University
Other
Eligibility
45 Years to 100 Years
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
College Station, Texas
Source: ClinicalTrials.gov public record
Updated Feb 6, 2022 · Synced Sep 6, 2026, 10:03 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

A Clinical Trial to Evaluate the Effects of an Omega-3-containing Supplement on DHA and EPA Levels in the Blood

NCT07753174
View directory record Official record
Conditions
Omega-3 Deficiency, DHA and EPA Blood Levels, Cardiovascular Health, Cognitive Health
Interventions
Omega Active Supplement
Dietary Supplement
Lead sponsor
Revive Active
Industry
Eligibility
18 Years to 65 Years
Enrollment
49 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Aug 6, 2026 · Synced Sep 6, 2026, 10:03 AM EDT
Withdrawn Phase 2 Interventional

Derivatives of Omega-3 HUFA as Biomarkers of Traumatic Brain Injury

NCT02990091
View directory record Official record
Conditions
TBI
Interventions
Omega 3 fatty acid, Safflower seed oil
Drug · Dietary Supplement
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 55 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 12, 2022 · Synced Sep 6, 2026, 10:03 AM EDT
Completed Not applicable Interventional

Testing Fish Oil Derivatives In Healing Of Chronic Venous Leg Ulcers

NCT01754506
View directory record Official record
Conditions
Venous Stasis Ulcers
Interventions
Fish Oil
Dietary Supplement
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 85 Years
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 15, 2015 · Synced Sep 6, 2026, 10:03 AM EDT
Terminated Not applicable Interventional

Nutrition Support to Improve Outcomes in Patients With Unresectable Pancreatic Cancer

NCT02681601
View directory record Official record
Conditions
Cancer of Pancreas
Interventions
Nutrawell Powder, Diet Only, OmegaRich fish oil supplement
Dietary Supplement · Other
Lead sponsor
Jonsson Comprehensive Cancer Center
Other
Eligibility
18 Years to 75 Years · Male only
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 2, 2022 · Synced Sep 6, 2026, 10:03 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Assessment of DHA On Reducing Early Preterm Birth

NCT02626299
View directory record Official record
Conditions
Preterm Birth
Interventions
Docosahexaenoic acid - 800mg/day, Docosahexaenoic acid - 200mg/day, Placebo
Drug · Other
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
1,100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2020
U.S. locations
3
States / cities
Kansas City, Kansas • Cincinnati, Ohio • Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 29, 2021 · Synced Sep 6, 2026, 10:03 AM EDT
Completed Phase 1 Interventional

Omega-3 and Therapy Study for Depression

NCT01341925
View directory record Official record
Conditions
Depression
Interventions
Omega-3 Supplementation, Psychoeducational Psychotherapy (PEP), Placebo
Drug · Behavioral · Other
Lead sponsor
L. Eugene Arnold
Other
Eligibility
7 Years to 14 Years
Enrollment
73 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 7, 2016 · Synced Sep 6, 2026, 10:03 AM EDT
Completed Phase 1 Interventional Results available

Reducing Dyskinesia in Parkinson's Disease With Omega-3 Fatty Acids

NCT01563913
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Docosahexaenoic Acid (DHA), Placebo
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
21 Years to 99 Years
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jun 28, 2018 · Synced Sep 6, 2026, 10:03 AM EDT
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 6, 2026, 10:03 AM EDT
Completed Not applicable Interventional

The Effect of Supplemental Docosahexaenoic Acid (DHA) on Neurocognitive Outcomes in Teen and Adult Women With Phenylketonuria(PKU)

NCT00892554
View directory record Official record
Conditions
Phenylketonuria
Interventions
Docosahexaenoic Acid, Corn/soy oil
Dietary Supplement
Lead sponsor
Emory University
Other
Eligibility
12 Years to 50 Years · Female only
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Dec 10, 2015 · Synced Sep 6, 2026, 10:03 AM 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 6, 2026, 10:03 AM 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 6, 2026, 10:03 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Bioavailability of EPA/DHA in of Ruby-O and Krill Oil

NCT05438173
View directory record Official record
Conditions
Bioavailability
Interventions
EPA + DHA Ruby-O, EPA + DHA Krill Oil
Dietary Supplement
Lead sponsor
Midwest Center for Metabolic and Cardiovascular Research
Other
Eligibility
18 Years to 55 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Port Saint Lucie, Florida
Source: ClinicalTrials.gov public record
Updated Nov 30, 2022 · Synced Sep 6, 2026, 10:03 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Early DHA/ARA Supplementation in Growth-restricted Very Preterm Infants: A Randomized Clinical Trial

NCT06207071
View directory record Official record
Conditions
Infant Malnutrition, Light-For-Dates With Signs of Fetal Malnutrition, Premature, Nutrition Disorder, Infant
Interventions
DHA
Dietary Supplement
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
24 Hours to 72 Hours
Enrollment
152 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jun 14, 2026 · Synced Sep 6, 2026, 10:03 AM 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 6, 2026, 10:03 AM EDT