Pro Tip – Eat an additional grams of carbohydrates per day to combat unhealthy breath. Acetone is excreted from the physique by way of exhalation and urination. Drinking plenty of water might help flush away excess ranges of acetone. Many a chemist will vouch for the hallmark smell of acetone; it’s pungent, fruity and is akin to the smell of nail polish remover. Keto bad breath is a sign that you are in a powerful state of ketosis.