The body has three sources of energy from which it draws to meet its metabolic needs: carbohydrates, muscle and fat. Chronologically the body will first draw on its carbohydrate reserve before turning to muscle and fat. On a ketogenic diet, your entire body switches its fuel supply to run almost entirely on fat. Insulin levels become low and fat burning increases. This is great for weight loss. The fastest way into Ketosis is by fasting but it is not possible to fast forever. A low-carb, or “keto” diet, can be eaten indefinitely as you are accessing your stored fat for fuel. Ketosis has the benefits of fasting – including weight loss – without having to starve yourself!