Vitamin D insufficiency and deficiency
Conditions
Interventions
For individuals with insufficient vitamin D intake, health guidance will be provided to increase vitamin D intake, followed by supplementation with a commercially available vitamin D supplement (25 ug
Sponsors
Doshisha Women's College of Liberal Arts, Graduate School
Eligibility
Sex/Gender
Female
Inclusion criteria
Inclusion criteria: The participants in this study will be first-year undergraduate nursing students recruited through convenience sampling, who have provided informed consent and have serum 25(OH) vitamin D levels below 30 ng/mL.
Exclusion criteria
Exclusion criteria: Individuals with diseases that affect nutrient absorption, such as those with conditions damaging the small intestinal mucosa (e.g., Crohn's disease), those who have undergone extensive small intestine resection, or those with diseases causing lymphatic obstruction (e.g., intestinal lymphangiectasia) Individuals with liver or kidney disorders affecting vitamin D metabolism Individuals with a bleeding tendency, such as those with a history of difficulty stopping bleeding after blood collection or those taking anticoagulant medications Individuals with allergies to apples, gelatin, or nuts Individuals with skin damage or lesions Individuals with photosensitivity Individuals with anxiety about self-blood collection
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| serum vitamin D | — |
Secondary
| Measure | Time frame |
|---|---|
| An increase in vitamin D intake, dietary fat intake, and sun exposure | — |
Countries
Japan
Contacts
Public Contacthonoka seki
Doshisha Women's College of Liberal Arts, Graduate School Graduate School of Nursing, Department of Nursing
Outcome results
None listed