How to Fix Keto Breath: A Dentist’s Guide to Fasting Bad Breath
Author's Note: I am a practicing dentist with clinical experience in preventive dentistry and oral health. The information shared in this article is based on both clinical observations and currently available oral health research. This article is intended for educational purposes only and should not replace professional medical or dental advice. As a practicing dentist, I regularly meet patients who have adopted ketogenic diets and intermittent fasting to improve their health. Many report positive changes such as weight loss, improved energy levels, and better blood sugar control. However, one concern comes up surprisingly often: "Doctor, ever since I started fasting, my mouth feels dry and my breath seems much stronger. Is something wrong?" In most cases, the answer is no. Dry mouth and keto breath are common experiences during fasting and ketosis. Understanding why they happen can help you manage them effectively without compromising your fasting goals. In my...