Because most carbohydrates are converted to glucose which is the body’s preferred source of energy. Ona keto diet we need fat to be the provider of energy and to do that we need to achieve ketosis which cannot be done if you eat a lot of carbs. By now, you know fat isn't as bad as everyone once thought. But we're guessing you still think twice before cooking with butter and indulging in a little cheese.
https://www.worthydiets.com/keto-now-reviews/
https://www.worthydiets.com/keto-maxx/
https://the-dots.com/projects/keto-now-reviews-read-how-does-it-work-654721/preview
https://forum.xda-developers.com/t/https-www-worthydiets-com-keto-now-reviews.4412811/