Methods: The community control randomized trial in 108 military officers, one group used 20g of Vitan1 (20g polydextrose) per day and the other used placebo. Results: After intervention, the mean of weight of both groups were lower than at the start, but the intervention group lower than the control (p <0.05); The mean BMI index, waist and hip circumference,% body fat of both intervention and control group were reduced (p <0.05), but it is higher rate in the intervention group than the control; cholesterol, triglycerides, LDL-C reduction compared with baseline and compared with control group (p <0.05), while HDL-C concentrations increased (p <0.05); The pliability of fecal also improved and increased the ease of bowel movement of the intervention than the control group (p <0.01).