Although extremely popular, the Keto diet has a major drawback in that it can cause bad breath. Keto breath (as it has been dubbed) is caused by the low-carb diet and results in an acetone- or ammonia-like odour.
Fortunately, the condition is treatable if not preventable. A top dentist recommends:
– Stimulate production of saliva with gum and sweets containing xylitol (a natural alcohol found in plants)
– Drink plenty of water
– Snack on herbs like parsley, cinnamon and clove
Brushing teeth “at least twice a day, flossing and using mouthwash” is also very important in combating Keto breath and further advice can be found at https://www.popsugar.com/fitness/Why-Does-Keto-Diet-Give-You-Bad-Breath-45048410