HealthyVitMaDNCT01184716
The Effect of Vitamin D Fortification of Bread and Milk in Danish Families
A study testing Vitamin D fortification in people with Healthy, run by Technical University of Denmark at 1 site in Denmark.
Trial summary
Approximately 200 families corresponding to 800 persons are included in the study. The study investigate the efficacy of vitamin D fortification of bread and milk on vitamin D status in serum. Participants receive milk and bread twice a week. Read more about this study
- Who is it for?
- Ages 4 to 60 yearsHealthy volunteers can take part
- Conditions the study is for
- Healthy
- What is being tested?
- Vitamin D fortification
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 782 participants
- Where
- 1 siteDenmark
- Study dates
- Sep 2010to Apr 2011
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 4 to 60 years
- All sexes
- Healthy volunteers accepted
- Child, Adult
Who may be able to join
- Family with at least one child between the age 4 to 18 years and at least one adult less than 60 years of age
- Permanent address in a specific geographical region.
Who cannot join
- Use of medication (including dietary supplements with high levels of vitamin D)
- Diseases which influence vitamin D metabolism
- Pregnancy
Trial locations and contacts
1 site in 1 country.
Denmark1 site
Division of Nutrition, National Food Institute, Technical University of Denmark
Søborg, 2860
About this study
Approximately 200 families corresponding to 800 persons are included in the study. The study investigate the efficacy of vitamin D fortification of bread and milk on vitamin D status in serum. Participants receive milk and bread twice a week. Half of the participants receive vitamin D fortified products and the other half similar non-fortified products. The study starts in September and runs for 6 months during winter, the period where it is not possible to produce vitamin D in the skin through sunlight exposure. The hypothesis is that the usual fall in vitamin D status can be prevented by vitamin D fortified food.
- Conditions
- Healthy
- Being tested
- Vitamin D fortification
- Keywords
- Vitamin D status (serum 25-hydroxyvitamin D)
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Vitamin D fortificationOther
Bread and milk fortified with vitamin D3
| Study group | Role | What they receive |
|---|---|---|
| Vitamin D fortified bread and milk | Active comparator | Not described Receives: Other: Vitamin D fortification |
| Non-fortified bread and milk | No intervention | Not described |
What is being measured
The primary outcome is the main question the study is designed to answer.
serum 25-hydroxyvitamin D
serum 25-hydroxyvitamin D is measured at the start of the study, after 2-3 months (on adults only) and after approximately 6 months
Measured: 6 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted19 Aug 2010 (estimated)
- Study startSep 2010
- Primary completionApr 2011
- Study completionApr 2011
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for HealthyStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind
- Who is masked
- Participant, Investigator, Outcomes assessor
- Enrolment
- 782 participants (actual)
Sponsor and investigators
- Lead sponsor
- Technical University of Denmark
- Sponsor type
- University, hospital or other
- Investigators
- Lone B Rasmussen, M.Sc., Ph.D., Principal investigator, National Food Institute, DTU
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01184716
- Sponsor's protocol ID
- 12394
- Acronym
- VitMaD
- Status last verified
- May 2011
- First submitted
- 17 Aug 2010
- Last updated
- 9 May 2011
- Results posted
- No
- Data monitoring committee
- No
Publications
Nissen J, Vogel U, Ravn-Haren G, Andersen EW, Madsen KH, Nexo BA, Andersen R, Mejborn H, Bjerrum PJ, Rasmussen LB, Wulf HC. Common variants in CYP2R1 and GC genes are both determinants of serum 25-hydroxyvitamin D concentrations after UVB irradiation and after consumption of vitamin D(3)-fortified bread and milk during winter in Denmark. Am J Clin Nutr. 2015 Jan;101(1):218-27. doi: 10.3945/ajcn.114.092148. Epub 2014 Nov 5.
PubMed 25527766
Study at a glance
From the registry record, last updated by the sponsor on 9 May 2011. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Effect of Vitamin D Fortification of Bread and Milk in Danish Families
- ClinicalTrials.gov ID
- NCT01184716
- Acronym / sponsor ID
- VitMaD / 12394
- Conditions
- Healthy
- Keywords
- Vitamin D status (serum 25-hydroxyvitamin D)
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 782 participants (actual)
- Lead sponsor
- Technical University of DenmarkUniversity, hospital or other
- Study start
- Sep 2010
- Primary completion
- Apr 2011 (actual)
- Study completion
- Apr 2011 (actual)
- First posted
- 19 Aug 2010 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Approximately 200 families corresponding to 800 persons are included in the study. The study investigate the efficacy of vitamin D fortification of bread and milk on vitamin D status in serum. Participants receive milk and bread twice a week. Half of the participants receive vitamin D fortified products and the other half similar non-fortified products. The study starts in September and runs for 6 months during winter, the period where it is not possible to produce vitamin D in the skin through sunlight exposure. The hypothesis is that the usual fall in vitamin D status can be prevented by vitamin D fortified food.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind (participant, investigator, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Vitamin D fortified bread and milk | Active comparator | Other: Vitamin D fortification |
| Non-fortified bread and milk | No intervention | – |
Who may qualify
- Ages
- 4 to 60 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult
Key inclusion criteria (2 listed)
- Family with at least one child between the age 4 to 18 years and at least one adult less than 60 years of age
- Permanent address in a specific geographical region.
Key exclusion criteria (3 listed)
- Use of medication (including dietary supplements with high levels of vitamin D)
- Diseases which influence vitamin D metabolism
- Pregnancy
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Vitamin D fortificationBread and milk fortified with vitamin D3 | Other | Vitamin D fortified bread and milk |
Primary outcome
serum 25-hydroxyvitamin D
Time frame: 6 months
serum 25-hydroxyvitamin D is measured at the start of the study, after 2-3 months (on adults only) and after approximately 6 months
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 9 May 2011.
- Derived from this study: PubMed 25527766Nissen J, Vogel U, Ravn-Haren G, Andersen EW, Madsen KH, Nexo BA, Andersen R, Mejborn H, Bjerrum PJ, Rasmussen LB, Wulf HC. Common variants in CYP2R1 and GC genes are both determinants of serum 25-hydroxyvitamin D concentrations after UVB irradiation and after consumption of vitamin D(3)-fortified bread and milk during winter in Denmark. Am J Clin Nutr. 2015 Jan;101(1):218-27. doi: 10.3945/ajcn.114.092148. Epub 2014 Nov 5.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Lone B Rasmussen, M.Sc., Ph.D. principal investigator
National Food Institute, DTU
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Vitamin D fortification in people with Healthy, run by Technical University of Denmark at 1 site in Denmark.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 9 May 2011. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Denmark. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
serum 25-hydroxyvitamin D (time frame: 6 months). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT01184716, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 9 May 2011; AzTrials last refreshed its copy on 8 Nov 2026.