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Abstract
This study was performed to examine the diet effect of green coffee bean extract on body fat reduction. Overweight/obese women (body mass index > 23 kg/m2 or body fat > 27%) who were not diagnosed any type of disease were included in this study and subjects were randomly assigned to green coffee bean extract group (n = 23) or placebo group (n = 20). We measured anthropometric parameters, abdominal fat distribution by computed tomography and blood components before and after the 8-weeks intervention period. After supplementation, green coffee bean extract group showed a significant reduction of body weight (p < 0.01), body fat percent (p < 0.01), total fat area at L1 vertebra (-4.8%, p < 0.05) and visceral fat area at L4 vertebra was(-4.7%, p < 0.05). In addition, total fat area and visceral fat area at L1 vertebra decreased significantly in green coffee bean extract group compared with placebo group (p < 0.05, p < 0.05 respectively). The result of present study demonstrated that the supplementation of green coffee bean extract for 8 weeks can give beneficial effects on body fat reduction and visceral fat accumulation.
Figures and Tables
Fig. 1
Changed values in total fat, visceral fat and subcutaneous fat at L1 and L4 between control group and test group. mean ± S.E. P-value compared with changed values of placebo group.
Table 1
Anthropometric parameters and blood pressure in overweight women before and after intervention
mean ± S.E. 1) Blood pressure. No significant differences in initial value between placebo and test group. pa: compared with initial value in placebo group by Wilcoxon singed ranked test. pb: compared with initial value in test group by Wilcoxon singed ranked test. pc: compared with changed value between placebo and test group by Mann-Whitney test.
Table 2
Dietary food intake and total energy expenditure in overweight women before and after intervention
mean ± S.E. 1) Visceral/subcutaneous fat ratio. No significant differences in initial value between placebo and test group. pa: compared with initial value in placebo group by Wilcoxon singed ranked test. pb: compared with initial value in test group by Wilcoxon singed ranked test. pc: compared with changed value between placebo and test group by Mann-Whitney test.
Table 3
Fat and muscle areas at different levels of body in overweight women before and after intervention
Table 4
Lipid profiles, apolipoproteins and fasting glucose levels in overweight women before and after intervention
mean ± S.E. 1) Atherogenic index = (Total cholesterol-HDL cholesterol)/HDL cholesterol. No significant differences in initial value between placebo and test group. pa: compared with initial value in placebo group by Wilcoxon singed ranked test. pb: compared with initial value in test group by Wilcoxon singed ranked test. pc: compared with changed value between placebo and test group by Mann-Whitney test.
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