Fasting, paleo, and low-carb diets are an important health practice for some people. But a common side effect of the weight loss from a low-carb diet is bad breath (often called keto breath), caused by a process called ketosis. You’re not going to give up on your diet, you’ve finally been shredding some serious pounds, so what’s the solution?

The ketogenic diet, commonly known as the keto diet is a high-fat, moderate-protein, low-carb diet designed to help you achieve “ketosis”. This is a natural metabolic state that occurs when you don’t receive enough carbs for energy and your body starts burning fat for fuel.

While the ketogenic diet and other low-carb diets can help you lose weight faster, “keto breath” is an unwanted side effect of ketosis.

You’re Not The Only One


Most people on some form of low carbohydrate diet tend to have worse breath than those who use other methods of dieting. Low-carb diets work by limiting the amount of carbs entering the body, so your body must then look to stored fat for fuel. This “keto breath” is what causes bad breath when you’re eating low-carb or paleo, or fasting. Certain foods are also to blame for the bad breath. High-protein foods produce more sulfur when broken down into particles. These particles tend to stay on your tongue and in your mouth longer, especially if you don’t brush in between meals.

How to Combat Keto Breath


Drink plenty of water:

Among the many benefits of drinking water, water also helps wash away plaque and bacteria. Since it’s not always possible to brush after every meal, drinking water continuously can help flush out any food or bacteria build-up inside your mouth.

Pop A Piece Of Sugarless Gum:

Any sugarless gum that contains xylitol will help chase away bad breath as well as cavities. When you chew, your mouth produces more saliva, which helps break down plaque, bacteria, and acid in your mouth. Make sure your gum does not have artificial sweeteners.

Keep A Toothbrush Handy:

There’s nothing wrong with popping into the office bathroom for a quick brush after lunch, or in-between snacks. Don’t be caught without a toothbrush! Bacteria thrive on the tongue so give it a good brush as well.

Tongue scraping:

You can physically remove sulphuric compounds by scraping your tongue.


A low-carb diet can help you lose weight faster, but keto breath is one side effect that you can’t always ignore. If you’re determined to turn your body into a fat-burning machine, don’t give up on the diet. Between mints, gum, and drinking more water, you might be able to mask the odor until keto breath subsides. Visit Newton Dentist Associates regularly. Know when to call  Newton Dental Associates.



From tooth cleaning to whitening, to full makeovers and total facial esthetics, Newton Dental Associates is a place for everyone.