Estimation of the Dietary Requirement for Vitamin D in Ethnic Groups: a Double-blind, Randomised, Dose-response Trial
Status: Recruiting
Location: See location...
Intervention Type: Dietary supplement
Study Type: Interventional
Study Phase: Not Applicable
SUMMARY
The aim of this study is to perform a double-blind, randomised, dose-response trial of vitamin D3 supplementation in United Kingdom (UK)-dwelling adults of white European, South Asian, and black African/Caribbean ethnicity to investigate the distribution of dietary intakes needed to maintain adequate vitamin D status in winter, as indicated by serum 25(OH)D concentrations at ranges of \>25 to 50 nmol/L. In addition, this study will investigate the effect of vitamin D3 supplementation on immune health, muscular strength, and overall health.
Eligibility
Participation Requirements
Sex: All
Minimum Age: 18
Healthy Volunteers: t
View:
• British white European, black African/Caribbean, or South Asian (self-reported)
• Living in England for \>2 months
• Aged \>18 years
• No significant health issues
• English or Urdu speaker
Locations
Other Locations
United Kingdom
Faculty of Health and Medical Sciences
RECRUITING
Guildford
Contact Information
Primary
Abigail Bournot, PhD
a.bournot@surrey.ac.uk
01483689222
Backup
Susan Lanham-New
s.lanham-new@surrey.ac.uk
01483686476
Time Frame
Start Date: 2023-11-01
Estimated Completion Date: 2025-09
Participants
Target number of participants: 114
Treatments
Active_comparator: Vitamin D Supplement 400 IU
400 IU (10 µg) of Vitamin D3
Active_comparator: Vitamin D Supplement 1000 IU
1000 IU (25 µg) of Vitamin D3
Active_comparator: Vitamin D Supplement 2000 IU
2000 IU (50 µg) of Vitamin D3
Related Therapeutic Areas
Sponsors
Collaborators: University of Reading
Leads: University of Surrey