Cause of Bad Breath

The most important cause of bad breath (Halitosis) is the accumulation of food debris, dead cells, fungi and post-nasal drip on the rear of the tongue. The breakdown of proteins by bacteria that live on the rear of the tongue create compounds such as VCS’s (volatile sulfurous compounds) which are the source of most bad breath problems.

7 Top causes of Bad Breath:

  • Decaying food particles and other matter on the rear of the tongue surface
  • Smoking
  • Alchohol consumption
  • Lack of proper hydration in the oral cavity or Xerostemia
  • Post-nasal drip
  • Failure to floss – decaying matter between your teeth smells!
  • Ingesting foods that exude bad smells like garlic and onion

Of these top causes of bad breath, most are controllable by you.

To find out how to rid yourself of bad breath caused by most of these factors, visit our breath kit product page.


Experts in the dental field have shown that the majority of bad breath conditions come from sources in the mouth.

Recent research has confirmed that the vast majority of bad breath cases originate from accumulated decaying bacterial plaque and food coating the back of the tongue. For many patients, gum disease contributes to halitosis, and it is therefore important that a dentist assess the precise cause.

About VSC’s:

VSC’s, the most prevalent bad breath smell, contain sulfur, hydrogen sulfide and methyl mercaptan, the two most plentiful bad breath gases in human exhaled air. Hydrogen sulfide is the “rotten egg” smell.

Halitosis is often treated through the use of compounds containing some kind of chlorine dioxide, zinc or combination of chlorine dioxide and chemically altered forms of oxychlorine. These molecules then change the VSCs chemically into harmless compounds.