Bad Breath

Causes of bad breath

  • Medications
  • Bacteria
  • Respiratory tract infections
  • Diet (foods high in protein & dairy products)
  • Ongoing illness (diabetes, liver dysfunction, pulmonary disease & respiratory disease)
  • Alcohol
  • Mouth breathing

*Bad breath occurs when sulfur compounds are produced in the body and released into the air. The most common source of this sulfur is anaerobic (without oxygen) bacteria that live in the grooves or fibers at the back of the tongue. These bacteria produce the sulfur that gives off an unpleasant smell. This frequently occurs when the mouth is dry because it creates an ideal environment for anaerobic bacteria to thrive. Sulfur compounds are also produced when certain types of food are consumed. They make their way into the bloodstream and then to the lungs where it is excreted into the air we exhale.


  • Proper oral hygiene
  • Daily brushing and flossing (including the back of the tongue)
  • Drink lots of water (ensures the mouth is cleansed and full of oxygen)
  • Visit your dentist regularly for professional cleanings and oral exam.
  • Maintain a healthy diet and avoid foods with powerful odors