Vitamin D Status and Supplementation in Athletes (D-status)

Wageningen University

Status and phase: Completed; Phase 3

Conditions: Vitamin D Deficiency

Treatments: Dietary Supplement: vitamin D

Study type: Interventional

Funder types: Other

Identifiers

NCT02008201

D-status

Details and patient eligibility

About

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.

Full description

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

Enrollment: 153 patients

Sex: All

Ages: 18 to 60 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• athletes
• 19-60y

Exclusion criteria

• subjects who take vitamin D supplements

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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153 participants in 4 patient groups

Vitamin D dose 1

Experimental group

Description:

Vitamin D dose 1

Treatment:

Dietary Supplement: vitamin D

Vitamin D dose 2

Experimental group

Description:

Vitamin D dose 2

Treatment:

Dietary Supplement: vitamin D

Vitamin D dose 3

Experimental group

Description:

Vitamin D dose 3

Treatment:

Dietary Supplement: vitamin D

observational

No Intervention group

Description:

No dose