The more muscle you have in your body, the better equipped is to burn fat. While it is true that you need a balanced diet, it should not include potatoes, rice or bread at dinner as is commonly thought. Vary your cardio exercises - Alternate between two or more cardiovascular activities like walking and cycling or kickboxing and step aerobics. In light of all this, how can anyone dare to insist that fitness will take at least six months--maybe longer-- to just get off the ground?