Discussion
This pilot randomised clinical trial demonstrates that two different daily doses of 200 IU and 1000 IU of vitamin D for 4 months increase serum 25(OH)D concentration in a dose-response relationship in healthy young adults. No statistically significant relationship between BMI was found when comparing the intervention group with the control. Lower levels of total cholesterol, LDL-cholesterol and higher levels of HDL-cholesterol were evidenced in the intervention group. However, the decrease was statistically significant only in LDL-cholesterol levels in the intervention group when compared with the control group.