I have heard the term metabolism many times but I do not know what it means. Can you explain it in detail? Also can it help me lose weight faster? We all consume calories in the form of food and in order to stay fit our body needs to burn them and use the energy they provide. When we burn more calories than we eat it results in weight loss and when we burn lesser than the amount we consume it results in weight gain. Metabolism is the process that helps convert the food we eat into energy. In order