Efficacy of Oral Vitamin D Supplementation in Adolescents and Young Adults.

Participants in the intervention group will receive 105 DV doses of 1000 IU. The supplementation will be given by the Farma de Colombia laboratory, known commercially as Farma D, whose presentation is in soft gelatin capsules. It is recommended to take one dose per day at the same time and participants should record the daily intake time of the supplement for 15 weeks on a calendar.

Participants in the control group will receive 105 DV doses of 200 IU. The supplementation will be given by the same laboratory; it will have the same characteristics and recommendations for the intake as for the intervention group.