Finally, when your body starts making sufficient BHB from the reserved body fat, then it will properly depend upon the fat for energy production. Therefore, in such a moment your body will consider fat as a primary energy source neglecting Glucose. This will lead to faster weight loss. These Ketone bodies can take a certain time to be produced from the fat breakdown but on such short notice, our body can never produce enough Ketone bodies to sustain the Ketosis state.