Meta- analysis of BMI values at end of trial showed no statistically significant difference in BMI change by use of 25[OH]D supplementation .
Based on existing published trials , oral 25[OH]D supplementation does not significantly impact BMI change
The impact of 25-hydroxyvitamin D ( 25[OH]D ) supplementation on weight change remains controversial .
The objective of this study was to summarize the effects of 25[OH]D supplementation ( cholecalciferol or ergocalciferol ) on BMI change through a meta- analysis of published clinical trials .
Preliminary data about the influence of vitamin D status on the loss of body fat in young overweight/obese women following two types of hypocaloric diet.
The loss of weight was analysed in a group of sixty overweight/obese women of childbearing age ( 20 - 35 years ) according to their initial vitamin D status . Subjects were r and omly assigned to one of two slightly hypocaloric diets : Diet V , in which the consumption of vegetables was increased , or Diet C , in which the relative consumption of cereals ( especially breakfast cereals ) was increased .  Dietetic , anthropometric and biochemical data were collected at the start of the study and again at 2 weeks after dividing the women into groups depending on their having an initial serum 25-hydroxyvitamin D ( 25(OH)D ) concentration of < 50 nmol/l ( LD ) or > or=50 nmol/l ( HD ) . Dietary intervention led to a reduction in energy intake , body weight and BMI in all groups . The HD women showed greater body fat losses during the study than the LD women ( 1.7 ( SD 1.8 ) kg compared to 0.5 ( SD 0.8 ) kg ) . A better vitamin D status therefore aided the loss of body fat over the experimental period ( OR 0.462 ; CI 0.271 , 0.785 ; P < 0.001 ) . However , when the dietary groups were analysed separately , this effect was only seen in the C subjects ( OR 0.300 ; CI 0.121 , 0.748 ; P < 0.001 ) . The present results suggest that women with a better vitamin D status respond more positively to  hypocaloric diets  and lose more body fat ; this was especially clear among the C subjects who had a greater vitamin D supply during the experimental period
Meta- analysis of BMI values at end of trial showed no statistically significant difference in BMI change by use of 25[OH]D supplementation .
Based on existing published trials , oral 25[OH]D supplementation does not significantly impact BMI change
The impact of 25-hydroxyvitamin D ( 25[OH]D ) supplementation on weight change remains controversial .
The objective of this study was to summarize the effects of 25[OH]D supplementation ( cholecalciferol or ergocalciferol ) on BMI change through a meta- analysis of published clinical trials .