What's the Keto Diet?
First off, what the heck is the keto diet, anyway? Put simply, it's a high-fat, low-carb, moderate-protein diet that puts your body in a state of ketosis. When your diet is lacking in carbs but is high in fat, your liver creates ketones, which are substances made when the body breaks down fat for energy, says Zuckerbrot. The process of ketosis metabolizes fat to provide energy, meaning you're burning fat, as opposed to carbs. As a result, you might lose some weight, as your body is in fat-burning mode.