The keto diet is a high-fat very low-carb diet that is strict and very restrictive. In this diet you have to restrict your calorie intake to under 50 grams per day. Your body converts carbs to glucose which is then used as energy. When your body is starved of carbs it needs an alternate source of fuel. So instead of glucose your body starts burning fat for energy. This process is known as ketosis. Basically you have to starve your body of carbs to reach this state of ketosis. While in this state your body will use ketones as an