1 . Resting metabolic rate accounts for 60-75% of daily calories burned. This means you burn the most calories while at rest. The faster your metabolic rate the more calories you burn. People with a high percentage of lean body mass (fat free mass) burn more calories while at rest. This means it is important to not only lose fat but to gain muscle in the process. It is also important to eat enough calories during the day. Restricting calories will lower your Metabolism rate; this is why it is important to have a good healthy diet plan.