Vitamin D Deficiency
Conditions
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
It is an observational study
Sponsors
Study design
Eligibility
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
| Measure | Time frame | Description |
|---|---|---|
| Vitamin D concentration | 01.10.2024-01.10.2025 | Measurement of 25(OH) vitamin D in serum at four points over an academic year |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Depressive symptoms | 01.10.2024-01.10.2025 | The magnitude of depressive symptoms over an academic year |
| Cognitive functions | 01.10.2024-01.10.2025 | — |
| Inflammation status measured with CRP | 01.10.2024-01.10.2025 | — |
| Dietary intake of vitamin D | 01.10.2024-01.10.2025 | — |
| CYP2R1 genotype | 01.10.2024-01.10.2025 | — |
| Body composition | 01.10.2024-01.10.2025 | — |
Countries
Poland