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Vitamin D Status Fluctuations Over One Academic Year in Students

Annual Fluctuation of Vitamin D Nutritional Status in Students and Its Association with the Occurrence of Inflammation, Depressive States, and Cognitive Abilities

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06677411
Enrollment
70
Registered
2024-11-06
Start date
2024-10-01
Completion date
2025-08-31
Last updated
2024-11-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Vitamin D Deficiency

Brief summary

The main objective of the study is to assess changes in the concentration of vitamin D metabolite in serum throughout the academic year and to examine its relationship with the occurrence of inflammation indicators, dietary habits, nutritional status, severity of depressive states, and cognitive abilities in a group of students. An additional objective will be to assess the relationship between the genotype in the CYP2R1 gene and the concentration of 25(OH) vitamin D.

Interventions

OTHERObservention of vitamin D

It is an observational study

Sponsors

Poznan University of Life Sciences
Lead SponsorOTHER

Study design

Observational model
ECOLOGIC_OR_COMMUNITY
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to 30 Years
Healthy volunteers
Yes

Inclusion criteria

* no chronic diseases * student status * age 18-30 years

Exclusion criteria

* chronic diseases (related to malabsorption, kidney and liver diseases) * not active student status * age \<18 and \>30 years

Design outcomes

Primary

MeasureTime frameDescription
Vitamin D concentration01.10.2024-01.10.2025Measurement of 25(OH) vitamin D in serum at four points over an academic year

Secondary

MeasureTime frameDescription
Depressive symptoms01.10.2024-01.10.2025The magnitude of depressive symptoms over an academic year
Cognitive functions01.10.2024-01.10.2025
Inflammation status measured with CRP01.10.2024-01.10.2025
Dietary intake of vitamin D01.10.2024-01.10.2025
CYP2R1 genotype01.10.2024-01.10.2025
Body composition01.10.2024-01.10.2025

Countries

Poland

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026