Bioavailability of Vitamin D Clinical Trial
Official title:
Comparison of Bioavailability of Liposomal and Traditional Formulation of Vitamin D3
The aim of the study was to compare the profiles of 25-hydroxyvitamin D serum concentration in healthy adults after 4 weeks of using vitamin D supplementation either in a liposomal or a traditional formulation.
The study will be randomized, cross-over, participants will be randomly assigned to one of the study groups: A) the group receiving vitamin D3 in traditional formulation B) the group receiving vitamin D3 in liposomal formulation. The day before the start of supplementation (T0), 2 weeks (T1) and 4 weeks (T2) after the start of supplementation, participants will have their blood drawn. Then, after a wash-out period of 2 months, the groups will be switched. Participants will again receive daily supplementation with vitamin D3 for 4 weeks. Blood will be drawn before the start of supplementation (T0), 2 weeks (T1) and 4 weeks (T2) after the start of supplementation. ;