The study purpose was to examine the impact of providing individualized body composition information (intervention condition; n = 40) versus body weight information (standard control condition; n = 40) on motivational regulations in overweight female exercise initiates about to commence an exercise program. The Behavioral Regulation in Exercise Questionnaire-2 was completed prior to and following the information provision. Results revealed a significant increase in introjected regulation for the intervention condition indicating that the body composition information may have reinforced previous feelings of self-imposed pressure and a sense of obligation to start exercising. Implications for motivating new exercisers are discussed