Hey no your metabolism slows down and vodybheat resides. The weight gained after that is the reverse reaction of not eating right and burning excess kilojoules due to a lack of exercise. You will be fine if you continue training when you stop taking them and up your cardio. Your body weight should settle then after a short gain

Certain fatburners keep you awake all night if taken too late though but act as a great energy booster instead of burner