Keto breath, also known as ketosis breath, is a phenomenon that occurs when you are following a ketogenic diet. The ketogenic diet is a low-carbohydrate, high-fat diet designed to shift the body into a state of ketosis. During ketosis, the body primarily burns fat for energy instead of carbohydrates, resulting in the production of molecules known as ketones.
One specific ketone that contributes to keto breath is acetone. When the body breaks down fats for energy, acetone is produced as a metabolic byproduct. Acetone is then released into the bloodstream and can be expelled from the body through various means, including breath.