Fat Burning Range The fat burning range refers to low intensity workouts that burn fat. Unfortunately it is not quite as simple and straightforward as it sounds. It is true that we do burn fat at rest - the average person will use a fuel mix of 50% fat and 50% carbohydrates - and then when we start to exercise aerobically carbohydrates are needed as quick fuel because fat is harder to break down. So using this information you could have been encouraged to complete very low intense exercises because the harder you work the less fat you burn so the fuel used will include fat. What they don't tell you is that the fuel mix at rest increases rapidly the fitter you are up to 70% fat which is 20% more fat being burned at rest and a significant difference. Also it is important to realise that if you do a low intensity exercise you will burn less calories than a more intense session and you still need to burn more calories than you consume to lose weight. So our advice is do not waste your time on low intensity exercises but exercise between 70% to 85% of your maximum heart rate for a more intense workout. The benefits at work and at rest will make it worthwhile. The endorphin release will also be a high source of motivation because working at this intensity is far more satisfying and better for you.