A: The Ketogenic Lifestyle is a very low-carb, high-fat diet. Carbs are replaced with healthy fats and the reduction of carbs triggers a metabolic state known as lipolysis. Lipolysis is a process that occurs when the body begins to use fat for energy, instead of carbohydrates obtained from food. The by-products of lipolysis are ketones and ketosis is the secondary process of lipolysis. 

By depriving the body of carbohydrates, which is converted to glucose and typically used as fuel, it is forced to use its fat stores instead, literally melting it off the body when it is in ketosis. 

Ketosis makes the body burn stored and dietary fat for energy instead of getting its energy from the carbs you eat. Ketosis also turns fat into ketones in the liver that helps supply energy to the brain.