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Comparison of Sunlight Exposure and Vitamin D Supplementation on Serum 25-hydroxyvitamin D Levels

NCT03310242 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 150

Last updated 2017-10-31

No results posted yet for this study

Summary

This study aimed to compare the effects between sunlight exposure and oral vitamin D supplementation on serum 25-hydroxyvitamin D concentration and metabolic markers in Korean young adults.

Conditions

  • Vitamin D Deficiency
  • Cardiometabolic Risk Factors

Interventions

BEHAVIORAL

Sunlight Exposure

* Everyday sunlight exposure around noon for 20-30 minutes for 8 weeks * Completing a Sun Diary after sunlight exposure

DIETARY_SUPPLEMENT

Vitamin D Supplementation

\- Supplementation of vitamin D3 500 IU/day for 8 weeks

OTHER

Placebo

\- Intake of placebo for 8 weeks

Sponsors & Collaborators

  • Seoul National University Hospital

    lead OTHER

Principal Investigators

  • Hee-Kyung Joh, PhD · Seoul National University College of Medicine/Seoul National University Hospital

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
39 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2015-06-01
Primary Completion
2015-11-25
Completion
2015-11-30

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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 NCT03310242 on ClinicalTrials.gov