The fat burner called the one hand the reduction of body fat through a cardiovascular workout . To achieve this effect , the patient usually has to make aerobic exercises that can be increased from basic steps to complex sequences . On the other hand, are also nutrients that the body burn stimulate fat , called fat burners . A fat burning can e.g. be accelerated by a clever combination of certain nutrients (eg vitamins , proteins and fats ) . Through the weight loss thus reached , also the vitality of the patient can be increased .