Vitamin D Needs of Early Adolescent Children
Public ClinicalTrials.gov record NCT00931580. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
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Official title
Supplemental Vitamin D and Functional Outcomes in Early Adolescence
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
While a large percentage of children have low blood vitamin D levels, the significance of these low levels and the impact on health is unclear. The purpose of this project is to determine the effects of varying doses of vitamin D supplementation over 12 weeks on blood indicators of health in white and black children, aged 9 to 13 years, from both the northern and southern US.
Study identification
- NCT ID
- NCT00931580
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 323 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 9 Years to 13 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
- Oct 2009 (Type not available)
- Primary completion
- Apr 2011 (Actual)
- Completion
- Apr 2011 (Actual)
- Last update posted
- Sep 25, 2015
2009 – 2011
United States locations
- U.S. sites
- 3
- U.S. states
- 2
- U.S. cities
- 3
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| The University of Georgia Dept of Foods & Nutrition | Athens | Georgia | 30602 | — |
| Indiana University School of Medicine | Indianapolis | Indiana | 46202 | — |
| Purdue University | West Lafayette | Indiana | 47907 | — |
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 NCT00931580, 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, 2015 · Synced Nov 6, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT00931580 live on ClinicalTrials.gov.