NCT03310242

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

Comparison of Sunlight Exposure and Oral Vitamin D Supplementation on Serum 25-hydroxyvitamin D Concentration and Metabolic Markers in Korean Young Adults: a Randomized Clinical Trial

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 150 (actual)
• Sponsor: Seoul National University Hospital · Academic / Other
• Sex: All
• Age: 18 Years – 39 Years
• Healthy volunteers: Accepted

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

Type	Name	Description
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

Timeline

• Start date: 2015-06-01
• Primary completion: 2015-11-25
• Completion: 2015-11-30
• First posted: 2017-10-16
• Last updated: 2017-10-31