Anytime you look up the keto diet, aside from reading that it is a low carb, high fat diet that is loaded with health benefits, you’ll see the words ketosis and ketones. To best understand what the keto diet does to your body, it's helpful to know what those words mean. Read on to discover a brief overview of what ketosis actually is, what ketones are, and why they are so effective at helping you lose weight. You’ll also read about how to know whether your body is in a state of ketosis and how to check your ketone levels.