Vitamin D Supplementation in Healthy Adolescents

Clinical Trial of Vitamin D Supplementation in Healthy Adolescents

This double blind, randomized controlled trial compares two supplemental doses of vitamin D in health adolescents.

Vitamin D deficiency is a common problem. Currently, data do not support a recommended vitamin D supplementation dose for health adolescents to maintain normal vitamin D levels. This double blind, randomized controlled 12 week trial compares the use of two supplemental doses of vitamin D in this population.

Inclusion Criteria:

• 11-18 years old
• healthy

Exclusion Criteria:

• chronic disease
• use of medication known to effect bone or vitamin D metabolism
• abnormal vitamin D or calcium at screening
• pregnant
• body mass index <5% or >95%