It necessitates a complete cessation of carbohydrate consumption. When you do this, your liver reacts by producing ketone molecules, which signal your energy centres to begin burning fat. The difficulty is that this is extremely tough to achieve, and if you fail, you risk relapsing into additional weight problems. Even so, that pales in comparison to the risks you incur if you succeed. People have perished as a result of being carb-free for an extended period of time.