The basic principles of a ketogenic diet involve significantly reducing carbohydrate intake while increasing fat consumption, with moderate protein requirements. This macronutrient ratio shifts the body's metabolism toward fat burning, leading to a state known as ketosis. In ketosis, the body efficiently utilizes fats as a primary energy source, which can aid in weight loss and enhance energy levels. The diet emphasizes whole foods, such as avocados, nuts, and non-starchy vegetables, while limiting high-carb items like grains, sugars, and certain fruits.