Examining Vitamin D Levels in British African-Caribbean Women
The Relationship Between Sun Exposure, Diet, Lifestyle and Bone on Vitamin D Status (25OHD) in British African-Caribbean Women Living in Southern United Kingdom
This study looks at the vitamin D levels in British African-Caribbean women during the colder months to see how diet and sun exposure affect their health.
Quick facts
| Study type | Observational |
|---|---|
| Enrollment | 100 (estimated) |
| Ages | 18 Years and up |
| Sex | Female |
| Sponsor | University of Surrey Academic / other |
| Drugs / interventions | radiation |
| Locations | 1 site (Guildford) |
| Trial ID | NCT04179370 on ClinicalTrials.gov |
What this trial studies
This observational study investigates the vitamin D status of British African-Caribbean women living in the UK, particularly during late autumn and winter months when sun exposure is limited. The research aims to identify factors influencing vitamin D levels, such as dietary intake and sun exposure, and will compare findings from two different seasons. By focusing on this specific population, the study seeks to address a significant gap in existing research regarding vitamin D deficiency and its health implications.
Who should consider this trial
Good fit: Ideal candidates for this study are British African-Caribbean women aged 18-35 or over 55, living in England, and without significant health issues.
Not a fit: Patients who are pregnant, planning pregnancy, or have conditions affecting vitamin D metabolism may not benefit from this study.
Why it matters
Potential benefit: If successful, this study could lead to improved understanding and management of vitamin D deficiency in British African-Caribbean women, potentially enhancing their overall health outcomes.
How similar studies have performed: While there is limited research specifically on this population, studies have shown significant links between vitamin D deficiency and various health issues, indicating the potential relevance of this approach.
Eligibility criteria
Show full inclusion / exclusion criteria
Inclusion Criteria: * Women * British African-Caribbean Self-reported Having African ancestral origin and migrated via the Caribbean islands, or having at least one parent with African ancestral origin that migrated via the Caribbean * Living in England for \>2 months * Aged 18-35 or \>55 years * No significant health issues * Pre-menopausal (regular menstrual periods) or Post-menopausal (menstrual periods stopped for longer than 12 consecutive months) * BMI 18-30kg/m2 Exclusion Criteria: * Women in perimenopause or menopause * Pregnant or planning pregnancy during study period * Hypercalcaemia (\>2.5mmol/L) - assessed and excluded at baseline * Currently receiving treatment for medical conditions that are likely to affect vitamin D metabolism (osteoporosis, hormone replacement therapy, anti-estrogens treatment, antiepileptic drugs and breast cancer treatment) * Regular use of sun beds * Having a sun holiday one month prior to commencing study or plans for a sun holiday for more than 4 weeks within the study period * Women who take vitamin D or calcium supplements (or multivitamin supplements that contain these vitamins) - If potential participant agrees to stop supplement use to join the study, a wash-out period of 8 weeks prior to commencing the study is acceptable * Living in England for less than 2 months
Where this trial is running
Guildford
- University of Surrey — Guildford, United Kingdom (Recruiting)
How to participate
- Review the eligibility criteria above with your treating physician.
- Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
- Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.