When we are eating large amounts of carbohydrate, our body stores them as glycogen. Glycogen is a form of stored glucose which we can find in our liver and muscles. In the presence of adequate glucose, the body will burn this carbohydrate as its primary source of energy. However, when we restrict carbohydrate, after a few days our body becomes deprived of glycogen. As a result, our body requires a new energy source – fat. To burn fat for energy, our body must first convert the fatty acids in our body to compounds known as ketone bodies. These molecules are produced by the liver in times of carbohydrate restriction, and they are otherwise known as ‘ketones.’ The term ‘ketosis’ refers to the state/process during which the body burns fat for fuel.