Skip to main content
OpenTrials
Completed

NCT Number: NCT02118129

Vitamin D Among Young Adults: an Intervention Study Using a Mobile 'App'.

The purpose of this study is to examine whether a behavioural intervention changes attitudes, knowledge, intake or blood levels of vitamin D in young adults. The hypothesis is that an educational component and use of a mobile smartphone 'app' will increase knowledge and/or intake of vitamin D.

Completed

Looking for future studies?

Notify Me

Key information

Conditions

Vitamin D Deficiency Avitaminosis Behavior Deficiency Diseases Malnutrition Nutrition Disorders Nutritional and Metabolic Diseases

Age range

18 year–25 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

University of Guelph

Guelph, Ontario, N1G2W1, Canada

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Men or women aged 18-25 years
  • Must be fluent in English
  • Must be currently living in Canada
  • Must own iPhone, iPad or iPod Touch running iOS 7.0 or higher (handheld 'app' used in intervention is only available in Apple Store; not available for Android or Blackberry platforms at this time)

Exclusion criteria

  • Outside age group
  • Not fluent in English
  • Not living in Canada
  • Does not own the specified Apple device

Treatment and study plan

an educational video

Behavioral

wait listed

Other

Primary outcomes

  1. Vitamin D blood levels

    Time frame: 12 weeks

    Blood will be collected by finger prick at baseline and after the 12-week behavioural intervention to measure 25(OH)D.

  2. Vitamin D Intake

    Time frame: 12 weeks

    Vitamin D intake will be assessed using a food frequency questionnaire before and after the 12-week intervention.

Secondary outcomes

  1. Knowledge & attitudes regarding vitamin D

    Time frame: 12 weeks

    General knowledge & attitudes regarding vitamin D will be assessed via online questionnaire before, mid-way and after the 12-week intervention.

Other outcomes

  1. Vitamin D app recordings

    Time frame: 12 weeks

    Participants will enter their intake of foods & beverages into a handheld mobile 'app'. The data will produce a daily total intake of calcium & vitamin D. This data will be analyzed to assess changes in vitamin D intake throughout the 12-week intervention.

Sponsors and collaborators

Lead sponsor

University of Guelph

Other

Collaborators

  • Canadian Institutes of Health Research (CIHR)
  • Vitamin D Society

Registry information

Official study title

Knowledge, Attitudes, Intake and Blood Levels of Vitamin D Among Young Adults: an Intervention Study Using a Mobile 'App'.

Important dates

Study start
2014
Primary completion
2015
Study completion
2016
First posted
Apr 21, 2014
Registry last updated
Oct 26, 2016

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Related clinical trials

Published trials that share one or more normalized conditions with this study.