The purpose of this research was to examine the impact of self-management on daily net calories consumed by women who are overweight. Four white females between the ages of 35 and 41 with a self-reported BMI between 25 and 29.9 completed this study. A multiple baseline across participants design was used to demonstrate a functional relation between the independent variable (i.e., self-management) and the dependent variable (i.e., net calories consumed) for each participant. Three of the four participants decreased their daily net calories consumed after beginning the self-management intervention. This was the first single case research study to examine the effectiveness of self-management on daily net calories consumed (i.e., caloric intake minus caloric expenditure) and extended previous literature on white females who were overweight.