During the first phase, overweight/obese subjects with a BMI 28-35 Kg/m2 will be invited to a screening. At the screening, anthropometrics (weight, height, waist circumference) and body composition (using BIA and DEXA) will be measured. Based on the subject's distribution of body fat, those who have a predefined % body fat between 45-55% will be invited to join the study and they would fall into one of the following two groups: