Optimizing Vitamin D Nutrition in Healthy Adults

ClinicalTrials.gov ID: NCT00327847

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Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The purpose of this study is to determine the average dosage of oral vitamin D supplementation to maintain optimal vitamin D levels in the body and to see if there are differences in the response to oral vitamin D supplementation between African-American and Caucasian subjects.

Study identification

NCT ID: NCT00327847
Recruitment status: Completed
Study type: Interventional
Phase: Not applicable
Lead sponsor: Winthrop University Hospital; Other
Enrollment: 150 participants

Conditions and interventions

Conditions

Vitamin D Deficiency

Interventions

Oral Vitamin D Supplementation Drug

Drug

Eligibility (public fields only)

Age range: 18 Years to 65 Years
Sex: All
Healthy volunteers: Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date: Dec 2004 (Type not available)
Primary completion: Dec 2006 (Actual)
Completion: Dec 2006 (Actual)
Last update posted: Sep 25, 2008

2004 – 2006

United States locations

U.S. sites: 1
U.S. states: 1
U.S. cities: 1

Facility	City	State	ZIP	Site status
Winthrop University Hospital	Mineola	New York	11501	—

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows: Public field values for ClinicalTrials.gov record NCT00327847, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do: No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from: Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh: Last update posted Sep 25, 2008 · Synced Nov 15, 2026