This issue comes off a question I get a lot and it concerns the gluteus maximus. For those people trying to lose weight, but don't want to lose their rear end, don't worry! Cardio is NOT the devil, as long as you don't over do it. In addition, squats and lunges amongst other lower body workouts are fine, but I reccommend interval and set training. You want to feel a burn in those thighs and buns! As far as dietary concerns go, healthy carbs like rice and wheat bread will keep you in check.