Prevalence of Vitamin D deficiency in Australian adults before and after Vitamin D supplementation and frequency of respiratory infection: The Vitamin D study

Not Applicable

Completed

• Conditions: Vitamin D deficiency; Respiratory infection; Diet and Nutrition - Other diet and nutrition disorders; Respiratory - Other respiratory disorders / diseases; Infection - Other infectious diseases

• Registration Number: ACTRN12621001259831
• Lead Sponsor: AProf Dr Karin Ried

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2021-09-16
• Study Completion: 2022-03-09
• Last Update Posted: 6 June 2022

Recruitment & Eligibility

• Status: Completed
• Sex: All
• Target Recruitment: 200

Inclusion Criteria

1) observational component:
able to provide informed consent
&
2) interventional component:
Vitamin D level < 75 nmol/L
able to provide informed consent

Exclusion Criteria

observational & interventional components:
taking daily Vitamin D supplements of 3000 IU/day
having had a bolus Vitamin D injection in the last 3 months

Study & Design

• Study Type: Interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Vitamin D levels by blood test<br>[baseline and at 3-months post initiation of intervention]

Secondary Outcome Measures

Name	Time	Method
frequency of respiratory illness (cold and flu) in the last 3 months by questionnaire specifically designed for this study[baseline and at 3-months post initiation of intervention]