Vitamin D Deficiency Clinical Trial
Official title:
Effect of Vitamin D Oral Supplements on 25 OH Vitamin D Levels: A Randomized Controlled Trial
Vitamin D deficiency is common world wide. 25 OH vitamin D level is the best indicator of
vitamin D status. Vitamin D supplements are available as vitamin D2 or D3, in small daily or
large weekly/monthly doses. Controversy continues on the relative potency of vitamin D2
compared to D3 and of daily compared to weekly or monthly doses, in increasing/maintaining
total 25 OH vitamin D level.
The investigators plan to conduct a controlled trial to compare the effect of various
vitamin D supplements on 25 OH vitamin D levels in healthy adults with starting 25 OH
vitamin D level between 20 to 50 nmol/L.
n/a
Allocation: Randomized, Endpoint Classification: Pharmacokinetics Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment
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