text: what should i do? previously i absouletly loved my stomach. but no its no more slim or in. i am thin. i'm 5.5ft and 50 kgs. but i want to lose the fat in my stomach and get it slim. how do i do that? please help!!!!!!! do not do sit-ups! all that will do is build the muscle and define abs behind your "fat" no matter how little it may be. you want to get a cardio workout to burn the carbs in your body and that will help you lose fat. i suggest running or jump rope, something that gets the heart rate going up to about 160bpm. if your diet is already well balanced then changing your diet isn't usually necessary. you will soon start to notice the inches falling off! good luck!