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Can The Keto Diet Cause Bad Breath?


Are you on the Keto diet and suffering from bad breath? You’re not alone! Many people experience bad breath when they are on a low-carb diet, but there are steps you can take to alleviate this problem. In this blog post, we will discuss the causes of bad breath on the Keto diet and how to treat it.


Why The Keto diet causes Bad Breath

If you’re on the keto diet, you may be familiar with one of its not-so-pleasant side effects: bad breath. But why does the keto diet cause bad breath?
The keto diet is a low-carb, high-fat diet that encourages your body to burn fat instead of carbohydrates for energy. As your body adjusts to this new source of fuel, it produces ketones, which are small molecules produced when fat is broken down in the liver. These ketones are then released into the bloodstream and can be detected in your breath. The primary ketone, acetone, is known to give off a strong, unpleasant odor. This is what causes bad breath on the keto diet.

Fortunately, there are ways to treat bad breath on the keto diet. Drinking lots of water helps to flush out toxins and helps to keep your mouth hydrated. Scraping your tongue with a tongue scraper also helps to remove bacteria from your mouth. Additionally, avoiding stinky foods such as garlic and onions can also help reduce bad breath. A tongue cleaner and sugar-free gum can also help freshen your breath. Finally, brushing and flossing regularly helps to get rid of any food particles that may be stuck between teeth or on your tongue.
By following these tips, you can help treat bad breath caused by the keto diet and keep your breath fresh.


Drink lots of water

One of the best ways to fix bad breath on the keto diet is to drink lots of water. Drinking water helps to flush out toxins and bacteria that can cause bad breath. Additionally, staying hydrated keeps your mouth moist which helps prevent dryness, another common cause of bad breath. To ensure that you stay hydrated, try to drink at least 8 glasses of water a day and avoid drinking sugary or caffeinated beverages. Drinking herbal teas or adding lemon or cucumber slices to your water can also help reduce bad breath.

Scrape your tongue

Bad breath on the keto diet is a common issue. One of the ways to fix it is by scraping your tongue. Scraping your tongue helps remove bacteria that may cause bad breath. To do this, you will need a tongue scraper, which can be found in most pharmacies or online. Start at the back of your tongue and gently scrape forward as far as possible. Be sure to rinse the scraper off with warm water after each use. This will help to keep the bacteria from spreading and help reduce bad breath on the keto diet.


How to use a tongue cleaner

Bad breath on the keto diet can be a tricky issue to tackle. One way to help combat it is by using a tongue cleaner. This device is designed to scrape away bacteria and debris from the surface of your tongue that can cause bad breath. Tongue scrapers are easy to use and can help keep your mouth feeling clean and fresh.
To use a tongue cleaner, you should:

1. Start by holding the handle of the cleaner in one hand and the pointed end in the other.
2. Then, place the pointed end of the cleaner on the back of your tongue.
3. Gently push the cleaner forward, scraping it against your tongue.
4. Rinse your mouth with water after each use.

Tongue cleaners are an effective and easy way to help combat bad breath on the keto diet. Using one regularly will help keep your mouth feeling fresh and clean and reduce any offensive odors.


Chew sugar-free gum

Chewing sugar-free gum is a great way to help fight bad breath on the keto diet. Sugar-free gum is an excellent way to stimulate saliva production, which can help to neutralize acidity in the mouth. Saliva also helps to break down bacteria, reducing the risk of bad breath. Chewing sugar-free gum after meals can help to reduce food particles that are left behind on your teeth and tongue. This can help to reduce bad breath caused by food particles stuck on your teeth and tongue. Additionally, chewing sugar-free gum can freshen up your breath quickly when you don’t have time to brush or floss after a meal. It’s important to choose a sugar-free gum that doesn’t contain any artificial sweeteners that can kick you out of ketosis. Look for natural sweeteners like xylitol or stevia, as these won’t affect your ketosis levels.


Avoid stinky foods

Foods high in sulfur, such as garlic and onions, can increase bad breath on the keto diet. Eating these foods can cause your breath to smell sour or bitter. It’s best to avoid them if you’re trying to get rid of bad breath. Other foods that can contribute to bad breath include dairy, processed meats, and fried foods. Instead of eating these foods, try to focus on healthier options like fresh fruits, vegetables, lean proteins, and whole grains. Eating these foods will help keep your breath fresh and free from bad odors. Additionally, it’s important to limit your sugar intake as this can also lead to an increase in bad breath. By avoiding stinky foods and increasing your intake of healthy, nutritious foods, you can help reduce the severity of bad breath on the keto diet.


Brush and floss regularly

One of the simplest ways to prevent bad breath on the keto diet is to brush and floss your teeth regularly. Brushing your teeth two to three times a day and flossing at least once a day will help keep your mouth clean and free from bacteria. It will also help reduce plaque build-up, which can be a contributing factor to bad breath. To further reduce the likelihood of bad breath on the keto diet, make sure you are using a toothpaste specifically designed for the keto diet. This toothpaste is formulated with ingredients that have been proven to reduce the smell associated with bad breath on the keto diet.


Rinse with mouthwash

Rinsing with mouthwash is another great way to freshen up your breath when on the keto diet. Mouthwash can help remove bacteria from your mouth that can cause bad breath, as well as make sure your mouth stays clean and healthy. It is important to look for alcohol-free mouthwashes if you are on the keto diet, as alcohol-based products can dry out your mouth and increase your risk for bad breath. Be sure to read the labels of the mouthwashes you buy to make sure they don’t contain any sugar or sweeteners that may affect your blood sugar levels. Swish a little bit of the mouthwash in your mouth for 30 seconds after brushing and flossing, then spit it out. This will help get rid of any lingering odors and leave your breath feeling fresh!



Bad breath on the keto diet can be an unpleasant experience. Thankfully, there are some simple steps you can take to reduce and even eliminate the bad breath. Drink plenty of water, scrape your tongue, use a tongue cleaner, chew sugar-free gum, avoid stinky foods, brush and floss regularly and rinse with mouthwash. If all else fails, speak to your doctor about any underlying medical issues that could be causing the bad breath. With these simple tips, you can keep bad breath on the keto diet at bay and enjoy your low-carb lifestyle without worry.

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