Do a lot of aerobic work. Kick boxing, sparring, pilates, whatever floats your boat. If you train hard enough your basal metabolic rate will increase as well as your consuming more calories. I don't know the present recommendations but you need to intake the minimum at least for carbs, protein and fat as well as take a multivitamin a day. When I was young enough to train I trained for at least two hours a day. I would avoid running and swim or bicycle if you don't do something like the above. I can't recommend anything but keeping your body in a little ketosis everyday will burn fat once your carbohydrates are exhausted which is fairly quickly (15ish minutes). One way to do this is eat just enough carbs to get by, the minimum of fat per day, and the rest protein. You can eat all the roughage your body can handle and rabbit food (lettuce yada) is good for snacks. I think some call that the Atkins diet and others would say Paleo in some form. More protein less fat less carbs.