Apart from being hungry and thirsty, bad breath also often makes people who are fasting to be less comfortable and lazy to interact with others. What exactly causes bad breath when fasting and how to prevent it? Bad breath or halitosis is one thing that is often complained of when fasting. Bad breath during fasting certainly causes insecurity, especially when talking to other people. Finally, daily activities can also be disrupted. Causes of Bad Breath during Fasting At the time of fasting, the absence of chewed food makes saliva production reduced. As a result, conditions in the oral cavity become drier and bad breath appears. This is because saliva is useful to help clean up food debris that causes bad breath. In addition, saliva also contains enzymes that can fight bacteria in the oral cavity. Some studies mention that bad breath during fasting is also caused by increased concentrations of volatile sulfur compounds (VSC). VSC is a sulfur compound or gas component produced by ...