Trial reportThe international journal of behavioral nutrition and physical activity2016
A randomized, controlled trial evaluating the efficacy of an online intervention targeting vitamin D intake, knowledge and status among young adults.
Trial report in The international journal of behavioral nutrition and physical activity, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02118129 (Knowledge, Attitudes, Intake and Blood Levels of Vitamin D Among Young Adults), which is not on this map. Cited by 20 papers, 8 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Knowledge, Attitudes, Intake and Blood Levels of Vitamin D Among Young Adults: an Intervention Study Using a Mobile 'App'.
Who cites it
20 citing papers in PubMed, 8 syntheses or guidelines pooled it, 32 citations in OpenAlex.
- Improving complementary medicine literacy: a systematic review of educational interventions for consumers and caregivers.BMC complementary medicine and therapies · 2025Pooled it
- Behavioural and cognitive changes in young adults towards food and nutrition after exposure to digital food communication: a mixed-methods systematic review.The international journal of behavioral nutrition and physical activity · 2025Pooled it
- Adherence to vitamin D supplementation guidelines in children under five years of age: a systematic literature review.European journal of nutrition · 2024Pooled it
- Digital Health Technologies for Long-term Self-management of Osteoporosis: Systematic Review and Meta-analysis.JMIR mHealth and uHealth · 2022Pooled it
- Recruiting and retaining young adults: what can we learn from behavioural interventions targeting nutrition, physical activity and/or obesity? A systematic review of the literature.Public health nutrition · 2021Pooled it
- Pooled it
- Pooled it
- Mobile App-Based Health Promotion Programs: A Systematic Review of the Literature.International journal of environmental research and public health · 2018Pooled it
- Improving Parental Health Literacy in Primary Caregivers of 0- to 3-Year-Old Children Through a WeChat Official Account: Cluster Randomized Controlled Trial.JMIR public health and surveillance · 2024Trial
- Knowledge and practices of postmenopausal women regarding vitamin D and osteoporosis.Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia · 2026Article
- Dietary vitamin D intake and 2-year changes in cognitive function in older adults with overweight or obesity and metabolic syndrome.GeroScience · 2025Article
- Knowledge, attitude and practices regarding vitamin D among adults in Ghana: a cross-sectional study.BMC public health · 2025Article
- Effect of Nutrition Education on Health Science University Students to Improve Cardiometabolic Profile and Inflammatory Status.Nutrients · 2023Article
- Dietary Intake Estimated From a 24-Hour Recall Questionnaire in the Dene and Métis Communities of the Northwest Territories, Canada.Current developments in nutrition · 2023Article
- Trends in the Number of Behavioural Theory-Based Healthy Eating Interventions Inclusive of Dietitians/Nutritionists in 2000-2020.Nutrients · 2021Review
- Effect of Smartphone App's Intervention on Consumers' Knowledge, Attitude, Practice, and Perception of Food Poisoning Prevention When Dining Out at Selected Rural Areas in Terengganu.International journal of environmental research and public health · 2021Article
- A Counseling Application as an Alternative Tool in Increasing Coping Self-Efficacy Among University Students With Academic Distress During Coronavirus Disease 2019 Pandemic in Indonesia: A Study Protocol for a Randomized Controlled Non-Inferiority Trial.Frontiers in psychology · 2021Article
- Assessment of knowledge, attitudes and practice towards Vitamin D among university students in Pakistan.BMC public health · 2020Article
- Determinants of Vitamin D Supplementation among Individuals with Type 1 Diabetes.International journal of environmental research and public health · 2020Article
- A Review of Knowledge, Belief and Practice Regarding Osteoporosis among Adolescents and Young Adults.International journal of environmental research and public health · 2018Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
backgroundVitamin D plays a key role in bone health. Consuming adequate vitamin D during young adulthood is important due to the development of peak bone mass; however, many Canadian young adults do not meet vitamin D recommendations. This study aimed to improve knowledge, perceptions, dietary intake and blood concentrations of vitamin D among a sample of young adults.
methodsUsing a pre-post design, 90 Ontario adults (38 men, 52 women; 18-25 years), were randomly assigned to intervention or control groups. Participants completed a socio-demographic survey, pre-post food frequency questionnaire, and a vitamin D knowledge questionnaire (3 time-points). The intervention group watched a video, received online information and tracked intake of vitamin D using a mobile application for 12 weeks. A sub-sample of participants completed pre-post blood 25(OH)D
resultsMean vitamin D intake in the sample increased significantly from pre-test (M = 407, SD = 460 IU) to post-test (M = 619, SD = 655 IU), t(88) = 5.37, p < 0.001. Mean intake increased significantly more in the intervention than control group after controlling for gender and education, F(1, 85) = 4.09, p = 0.046. Mean blood vitamin D
conclusionsAlthough recommendations suggest blood 25(OH)D
trial registrationClinicalTrails.gov registration #: NCT02118129 .
Indexed as
Identifiers
What Socratic holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.