Adult
Conditions
Interventions
Eligible study participants will be equally divided into three groups (Group I: tablet, Group II: soft gel capsule, Group III: highly dispersible capsule). Each group will take a single tablet (1,000
Sponsors
Juntendo University
Eligibility
Sex/Gender
Female
Inclusion criteria
Inclusion criteria: 1. Female participants aged 20 years or older but younger than 50 years at the time of consent. 2. Body mass index (BMI) between 18.5 and 29.9. 3. No excessive tanning, such as through tanning salons. 4. Individuals who, after receiving sufficient explanation about the study and fully understanding the content, provided written informed consent based on their own free will.
Exclusion criteria
Exclusion criteria: 1. Individuals who had taken vitamin D or a multivitamin supplement containing vitamin D at least once per week during the past five months. 2. Individuals who had traveled to regions with strong sunlight in the past three months or who planned to do so during the study period. 3. Individuals with a history of malabsorption syndrome or irritable bowel syndrome. 4. Individuals judged by the principal investigator to be unsuitable for participation in the study for any other reason.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Mean increase in 25-hydroxyvitamin D [25(OH)D] levels calculated from pre- and post-supplementation blood measurements | — |
Countries
Japan
Contacts
Public ContactKazuhiro Kawamura
Juntendo University Fuculty of Medicine Food and Reproductive Function Advanced Research
Outcome results
None listed