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ClinicalTrials.gov public records Last synced Oct 22, 2026, 2:19 AM EDT

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Showing 433–456 of 604 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Dietary Deficiency Clear all
Completed Not applicable Interventional Accepts healthy volunteers

The Role of Dietary Fat on Postprandial Endotoxemia in Healthy Adults

NCT02521779
View directory record Official record
Conditions
Endotoxemia
Interventions
Low-fat Treatment Meal, Saturated-fat Treatment Meal, N-3 fat Treatment Meal, N-6 fat Treatment Meal
Other
Lead sponsor
Iowa State University
Other
Eligibility
18 Years to 40 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Ames, Iowa
Source: ClinicalTrials.gov public record
Updated Aug 13, 2015 · Synced Oct 22, 2026, 2:19 AM EDT
Recruiting Not applicable Interventional

Enhancing the Effectiveness of Home-delivery Based Produce Prescription Program Implementation Strategies

NCT06114199
View directory record Official record
Conditions
Nutritional Deficiency in Pregnancy
Interventions
Produce Prescription Program (PPRx) Standard, Smartphone App
Behavioral
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 44 Years · Female only
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 15, 2025 · Synced Oct 22, 2026, 2:19 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Treatment of Vitamin D Insufficiency

NCT00933244
View directory record Official record
Conditions
Vitamin D Deficiency
Interventions
High Dose Vitamin D3, Low Dose Vitamin D3, Placebo
Dietary Supplement
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
Up to 75 Years · Female only
Enrollment
230 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2014
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Nov 10, 2015 · Synced Oct 22, 2026, 2:19 AM EDT
Terminated Not applicable Interventional Results available

Intensive Nutrition in Acute Respiratory Distress Syndrome (ARDS): A Clinical Trial (INTACT)

NCT01921101
View directory record Official record
Conditions
Acute Lung Injury
Interventions
intensive medical nutrition, control
Behavioral · Other
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years to 90 Years
Enrollment
78 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 6, 2014 · Synced Oct 22, 2026, 2:19 AM EDT
Completed Not applicable Interventional

Identifying Vitamin D Deficiency in Very Low Birth Weight Infant (VLBW) Infants Part 2

NCT01363167
View directory record Official record
Conditions
Infant, Very Low Birth Weight, Calcium Deficiency, Vitamin D Deficiency
Interventions
400 IU Cholecalciferol- Vitamin D Daily
Dietary Supplement
Lead sponsor
Medical University of South Carolina
Other
Eligibility
1 Day to 3 Days
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
2
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Nov 24, 2014 · Synced Oct 22, 2026, 2:19 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Vitamin D Sulfates in Breastmilk

NCT06203041
View directory record Official record
Conditions
Vitamin D Deficiency, Breast Milk Collection
Interventions
Vitamin D
Dietary Supplement
Lead sponsor
Mayo Clinic
Other
Eligibility
1 Month to 60 Years
Enrollment
101 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated May 13, 2026 · Synced Oct 22, 2026, 2:19 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Energy Status and Protein Intake As Prognostic Indicators of Rehabilitative Outcomes

NCT06734845
View directory record Official record
Conditions
Orthopedic, Osteo Arthritis Knee, Hip Osteoarthritis, Protein-Energy Malnutrition, Energy Malnutrition Protein
Interventions
Total Knee Arthroplasty, Total Joint Arthroplasty
Procedure
Lead sponsor
University of Connecticut
Other
Eligibility
50 Years to 70 Years
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated Dec 16, 2024 · Synced Oct 22, 2026, 2:19 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Efficacy of Vitamin D Therapy on Glucose Homeostasis in Obese Adolescents

NCT02414529
View directory record Official record
Conditions
Vitamin D Deficiency
Interventions
Vitamin D2, Placebo
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
12 Years to 18 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 17, 2017 · Synced Oct 22, 2026, 2:19 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Habitual Diet and Avocado Trial

NCT03528031
View directory record Official record
Conditions
Intra-abdominal Fat, Metabolic Syndrome, High Cholesterol, Triglycerides High, Diet Habit, High Blood Sugar, Liver Fat, Dietary Modification, HDL Cholesterol, Low Serum, Cardiovascular Diseases, High Density Lipoprotein Deficiency, Low-density-lipoprotein-type, Cardiovascular Risk Factor, Diabetes
Interventions
Intervention Daily Avocado
Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
25 Years and older
Enrollment
1,008 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
4
States / cities
Loma Linda, California • Los Angeles, California • Boston, Massachusetts + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 22, 2023 · Synced Oct 22, 2026, 2:19 AM EDT
Withdrawn No phase listed Observational Accepts healthy volunteers

Vitamin D Deficiency in Subjects With Chronic Hepatitis C Compared to Healthy Volunteers

NCT01274013
View directory record Official record
Conditions
Chronic Hepatitis C
Interventions
Not listed
Lead sponsor
Avera McKennan Hospital & University Health Center
Other
Eligibility
20 Years to 60 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2019
U.S. locations
1
States / cities
Sioux Falls, South Dakota
Source: ClinicalTrials.gov public record
Updated Jan 10, 2019 · Synced Oct 22, 2026, 2:19 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Validation of the Magnesium Muscle Stretch Test

NCT04130620
View directory record Official record
Conditions
Magnesium Deficiency
Interventions
Applied Kinesiology
Diagnostic Test
Lead sponsor
Anthony Rosner
Other
Eligibility
18 Years to 75 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Warwick, Rhode Island
Source: ClinicalTrials.gov public record
Updated May 2, 2022 · Synced Oct 22, 2026, 2:19 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effectiveness of Qualia Magnesium+® Supplementation on RBC Magnesium Levels

NCT06979648
View directory record Official record
Conditions
Magnesium Deficiency
Interventions
Qualia Magnesium+®, Placebo
Dietary Supplement
Lead sponsor
Qualia Life Sciences
Industry
Eligibility
21 Years and older
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Carlsbad, California
Source: ClinicalTrials.gov public record
Updated Oct 5, 2026 · Synced Oct 22, 2026, 2:19 AM EDT
Completed No phase listed Observational

A Nutrition-Focused QIP in Outpatient Clinics

NCT03628196
View directory record Official record
Conditions
Malnutrition
Interventions
Not listed
Lead sponsor
Abbott Nutrition
Industry
Eligibility
45 Years and older
Enrollment
1,800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
2
States / cities
Los Angeles, California • Pasadena, California
Source: ClinicalTrials.gov public record
Updated Jul 20, 2020 · Synced Oct 22, 2026, 2:19 AM EDT
Completed Phase 1Phase 2 Interventional

Use of a Nutritional Supplement to Treat Diabetic Symptoms in HIV-Infected Adults

NCT00109746
View directory record Official record
Conditions
Insulin Resistance, HIV Infections
Interventions
chromium picolinate
Dietary Supplement
Lead sponsor
National Center for Complementary and Integrative Health (NCCIH)
NIH
Eligibility
18 Years and older
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2010
U.S. locations
1
States / cities
Stony Brook, New York
Source: ClinicalTrials.gov public record
Updated Mar 23, 2016 · Synced Oct 22, 2026, 2:19 AM EDT
Terminated Not applicable Interventional Results available

Vitamin D Deficiency and Atopic Dermatitis

NCT01337635
View directory record Official record
Conditions
Atopic Dermatitis, Vitamin D Deficiency
Interventions
Vitamin D
Drug
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
1 Year to 18 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Dec 5, 2018 · Synced Oct 22, 2026, 2:19 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Suspected Deficient Activation of Vitamin D in Patients With Secondary Hyperparathyroidism

NCT00754442
View directory record Official record
Conditions
Secondary Hyperparathyroidism
Interventions
Teriparatide
Drug
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
40 Years to 59 Years · Female only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 1, 2022 · Synced Oct 22, 2026, 2:19 AM EDT
Withdrawn Phase 2 Interventional Accepts healthy volunteers

Branched-chain Amino Acid Supplementation for Hepatocellular Carcinoma

NCT03908255
View directory record Official record
Conditions
Hepatocellular Carcinoma, Cirrhosis, Liver Failure
Interventions
Branch Chain Amino Acid, maltodextrin
Drug · Other
Lead sponsor
Louisiana State University Health Sciences Center in New Orleans
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Jan 28, 2022 · Synced Oct 22, 2026, 2:19 AM EDT
Terminated Phase 4 Interventional Results available

Nutrition and Pharmacological Algorithm for Oncology Patients Study

NCT04155008
View directory record Official record
Conditions
Oncologic Complications, Quality of Life, Nutrition Poor, Head and Neck Cancer, Lung Cancer, Pancreatic Cancer
Interventions
Dexamethasone, Dronabinol, Mirtazapine, Nutrition Intervention
Drug · Behavioral
Lead sponsor
Montefiore Medical Center
Other
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Nov 16, 2022 · Synced Oct 22, 2026, 2:19 AM EDT
Completed No phase listed Observational

A Prospective Study Frailty for Esophagectomy and Lung Resection in Thoracic Surgery

NCT03413449
View directory record Official record
Conditions
Thoracic, Thoracic Neoplasm, Lung Cancer, Esophageal Cancer, Surgery--Complications, Surgery, Sarcopenia, Malnutrition, Frail Elderly Syndrome
Interventions
Frailty model
Diagnostic Test
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
360 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 14, 2024 · Synced Oct 22, 2026, 2:19 AM EDT
Completed Not applicable Interventional

The Produce Drop: Using Food as Medicine to Lower A1C Levels and Blood Pressure

NCT04421755
View directory record Official record
Conditions
Diabetes, Hypertension, Nutrition Poor
Interventions
Produce delivery, Cooking classes
Other
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 64 Years
Enrollment
85 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Tulsa, Oklahoma
Source: ClinicalTrials.gov public record
Updated Jan 10, 2023 · Synced Oct 22, 2026, 2:19 AM EDT
Completed Not applicable Interventional Results available

Improving Vitamin D Status in Home-bound Elders

NCT01410084
View directory record Official record
Conditions
Vitamin D Deficiency, Accidental Falls
Interventions
Vitamin D3, Vitamin E
Dietary Supplement
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
65 Years and older
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 9, 2019 · Synced Oct 22, 2026, 2:19 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Novel Screening Tools For the Evaluation and Management of Malnourished Children in the Developing World

NCT02449408
View directory record Official record
Conditions
Overweight, Obesity, Small for Gestational Age, Prematurity
Interventions
Measurement of leptin and adiponectin obtained through blood sampling via venipuncture or finger/heelstick using novel screening tool
Other
Lead sponsor
Duke University
Other
Eligibility
1 Hour to 18 Years
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 27, 2017 · Synced Oct 22, 2026, 2:19 AM EDT
Completed Phase 2 Interventional Results available

Reduced Carbohydrate Versus Fat in Obese Subjects

NCT00846040
View directory record Official record
Conditions
Obesity
Interventions
Reduced fat diet, Reduced carbohydrate diet, Drug: f-18 fallypride, fMRI, PET
Other · Drug · Device
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 45 Years
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 15, 2021 · Synced Oct 22, 2026, 2:19 AM EDT
Terminated No phase listed Observational

Effect of Vitamin D Supplementation on In-vitro Fertilization (IVF) Outcomes

NCT01419743
View directory record Official record
Conditions
Infertility, Vitamin D Deficiency
Interventions
Not listed
Lead sponsor
Northwestern University
Other
Eligibility
18 Years to 38 Years · Female only
Enrollment
102 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
3
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 19, 2014 · Synced Oct 22, 2026, 2:19 AM EDT