![]() ![]() Results:īaseline 25OHD values in the D 2 group were lower than those in the D 3 and placebo groups ( P<0.01). Serum samples were obtained at baseline and at days 3, 7, 14, 21, 35, 49, 63 and 77. ![]() Treatment started with a loading dose (100 000 IU) followed by 4800 IU/day (d) between d7 and d20 and follow-up until d77. Healthy volunteers ( n=33, aged 33.4☖ years) were divided into three groups ( n=11, each): D 2, D 3 and placebo. To compare D 2 with D 3 we performed a single-blind, placebo-controlled randomized trial spanning 11 weeks. The superiority of cholecalciferol (D 3) over ergocalciferol (D 2) in sustaining serum 25-hydroxy vitamin D (25OHD) levels is controversial. ![]()
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