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 .
Calcium and dairy product modulation of lipid utilization and energy expenditure.
OBJECTIVE The purpose of this study was to investigate the impact of dietary calcium or dairy product intake on total energy expenditure ( TEE ) , fat oxidation , and thermic effect of a meal ( TEM ) during a weight loss trial . METHODS AND PROCEDURES The intervention included a prescribed 500-kcal deficit diet in a r and omized placebo-controlled calcium or dairy product intervention employing  twenty-four 18 to 31-year-old ( 22.2+/-3.1 years , mean + /- s.d . ) overweight women ( 75.5+/-9.6 kg ) .  TEM and fat oxidation were measured using respiratory gas exchange after a meal challenge , and TEE was measured by doubly labeled water . Fat mass ( FM ) and lean mass ( fat-free mass ( FFM ) ) were measured by dual-energy X-ray absorptiometry . Subjects were r and omized into one of these three intervention groups : ( i ) placebo ( < 800 mg/day calcium intake ) ; ( ii ) 900 mg/day calcium supplement ; ( iii ) three servings of dairy products/day to achieve an additional 900 mg/day . RESULTS There were no group effects observed in change in TEE ; however , a group effect was observed for fat oxidation after adjusting for FFM ( P=0.02 ) . The treatment effect was due to an increase in fat oxidation in the calcium-supplemented group of 1.5+/-0.6 g/h , P=0.02 . Baseline 25-hydroxyvitamin D ( 25OHD ) was positively correlated with TEM ( R=0.31 , P=0.004 ) , and trended toward a correlation with fat oxidation ( P=0.06 ) , independent of group assignment . Finally , the change in log parathyroid hormone ( PTH ) was positively correlated with the change in trunk FM ( R=0.27 , P=0.03 ) . DISCUSSION These results support that calcium intake increases fat oxidation , but does not change TEE and that adequate vitamin D status may enhance TEM and fat oxidation
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 .