“Unsubstantiated commercial advertisements in the United States lay press claim as many as 25 million Americans ‘suffer’ from bad breath. The exact numbers or percentage of the population who have oral malodour is very difficult to determine because there are no universally accepted criteria of diagnosis. For example there is not yet an accepted ‘cut-off’ line for the level of volatile sulphur compounds (VSC’s) which places a patient into the malodour category. At 75 ppb VSC concentration, the level at which is suggested to be meaningful, Miyazaki et al determined that up to 25% of the Japanese population would have oral malodour.”

Open your mouth and swallow the Sun.