Vitamin D Status and Supplementation in Athletes

Vitamin D Status and Supplementation in Elite Athletes

The objectives of this study are 1) to assess the prevalence of vitamin D deficiency in a group of sub elite athletes and 2) to identify seasonal changes in vitamin D status and the effect that supplementation may have during the course of a year.

The study is a double blinded parallel study design.

Study population: 175 elite/ sub elite athletes, male and female, aged 18-60y, from a variety of sport disciplines

Inclusion Criteria:

• athletes
• 19-60y

Exclusion Criteria:

• subjects who take vitamin D supplements