Conclusion : Cocoa/DC supplementation does not reduce anthropometric measures significantly .
However subgroup analysis regarding dose ( ≥ 30 g/day ) and duration ( between 4 to 8 weeks ) revealed significant reduction of body weight and BMI
ABSTRACT Background : Cocoa and dark chocolate ( DC ) have been reported to be effective for health promotion ; however the exact effect of cocoa/DC on anthropometric measures have not been yet defined .
Effect of dark chocolate on nitric oxide serum levels and blood pressure in prehypertension subjects.
AIM to investigate the effect of consumption of dark chocolate 30 g/day for fifteen days on  Nitric oxide ( NO ) serum levels and blood pressure in male and female employees with prehypertension . METHODS the study was a parallel r and omized clinical trial . A total of thirty-two subjects was divided into two groups using block r and omization . Sixteen subjects received 30 g/day dark chocolate and dietary counseling ( treatment group ) and the other 16 subjects received white chocolate 25 g/day and dietary counseling ( control group ) for fifteen days . Data collected in this study consisted of age , physical activity , body massa index , intake of energy , intake of sodium , and intake of polyphenol , NO serum levels and blood pressure . The measurement of NO serum levels was done in pre- and after- treatment , while blood pressure was assessed in pre- , during- and after- treatment . Statistical analysis was performed using independent t-test for normal distribution data and Mann-Whitney test for not normal distribution data , with the level of significancy of 5 % . RESULTS after 15 days treatment , NO serum level between treatment and control groups were significantly different 7.70 ± 3.84 vs 1.92(-0.79 ± 17.78 ) ( p=0.001 ) . Both groups had decreased systolic and diastolic blood pressure . Systolic blood pressure was different significantly between groups after treatment 120.64 ± 8.47 vs 131.19 ± 7.45 ( p=0.001 ) , while diastolic blood pressure was not significant 74.14 ± 6.30 vs 77.44 ± 10.29 ( p=0.308 ) . CONCLUSION in prehypertension subjects  , dark chocolate 30 g/day increased NOx serum levels and decreased systolic blood pressure after 15 days of treatment
Conclusion : Cocoa/DC supplementation does not reduce anthropometric measures significantly .
However subgroup analysis regarding dose ( ≥ 30 g/day ) and duration ( between 4 to 8 weeks ) revealed significant reduction of body weight and BMI
ABSTRACT Background : Cocoa and dark chocolate ( DC ) have been reported to be effective for health promotion ; however the exact effect of cocoa/DC on anthropometric measures have not been yet defined .