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Dietary Supplementation With 25-hydroxyvitamin D3 in Older Adults

NCT01398202 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 56

Last updated 2015-12-02

No results posted yet for this study

Summary

The purpose of this study is to investigate whether a supplement of 25-hydroxyvitamin D is five-times more potent in raising vitamin D status (as reflected by serum 25(OH)D) compared to an equivalent amount of vitamin D3 in older adults. It will entail a 10 week supplementation study during winter months.

Conditions

  • Vitamin D Status as Reflected by Serum 25-hydroxyvitamin D

Interventions

DIETARY_SUPPLEMENT

vitamin D3

20 micrograms per day for 10 weeks

DIETARY_SUPPLEMENT

25-hydroxyvitamin D3

7 microgram/day for 10 weeks

DIETARY_SUPPLEMENT

25-hydroxyvitamin D (20 microgram/day)

20 microgramday for 10 weeks

DIETARY_SUPPLEMENT

Placebo

0 ug vitamin D3/25-hydroxyvitamin D3/day for 10 weeks

Sponsors & Collaborators

  • University College Cork

    lead OTHER

Principal Investigators

  • Kevin D Cashman, PhD · University College Cork

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
45 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2011-01-31
Primary Completion
2011-07-31
Completion
2011-09-30

Countries

  • Ireland

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01398202 on ClinicalTrials.gov