Research: BACK and COLLEAGUES,

Listed in Issue 199

Abstract

BACK and COLLEAGUES, Department of Food Science and Human Nutrition, Research Institute of Human Ecology, Chonbuk National University, Jeonju, Jeonbuk, Republic of Korea investigated the anti-obesity and anti-atherosclerotic effects Chungkookjang (CKJ), a traditional fermented soybean food, in overweight / obese individuals.

Background

This study was designed to investigate the anti-obesity and anti-atherosclerotic effects of supplementation with Chungkookjang (CKJ), a traditional fermented soybean food, in overweight/obese subjects.

Methodology

The study was a 12-week, randomized, double-blind, placebo-controlled clinical trial followed by a 3-week screening period. Overweight/obese subjects (both groups having a body mass index >=23kg/m(2) and waist hip ratio of >=0.90 for men and >=0.85 for women) who were not diagnosed with any disease were included in this study. Sixty subjects were randomly divided into a CKJ (n=30, 26g/day) or placebo (n=30) group. During the 12-week intervention period, subjects were asked to maintain their usual diet and activity and not to take any functional foods or dietary supplements. Anthropometric parameters, abdominal fat distribution by computerized tomography, and blood parameters (lipid profile, atherosclerotic indices) before and after the 12-week intervention period were measured. Fifty-five subjects (29 CKJ group, 26 placebo group) finished the study.

Results

After the 12 weeks of supplementation, subjects in the CKJ group showed a significant improvement in apolipoprotein B (P<.05) compared with the placebo group. Visceral fat areas by computerized tomography scans and apolipoprotein B/apolipoprotein A1 showed a tendency to decrease in the CKJ group, but there were no significant differences between the CKJ and placebo groups.

Conclusion

These results suggested that CKJ supplementation has potential anti-atherosclerotic effects that might be more pronounced when combined with lifestyle modification.

References

Back HI, Kim SR, Yang JA, Kim MG, Chae SW and Cha YS. Effects of Chungkookjang supplementation on obesity and atherosclerotic indices in overweight/obese subjects: a 12-week, randomized, double-blind, placebo-controlled clinical trial. Journal of Medicinal Food. 14(5):532-7. May 2011.

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