http://tinyurl.com/bad-breath-tricks - READ the 10 Minute Bad Breath report NOW!!! One of the most common health problems in society is bad breath. Foul smelling breath might be the effect of variety of reasons. The growth of anaerobic bacteria on the tongue is the most frequent reason for this. The protein present in the food we consume is broken down by these bacteria resulting in the formation of malodorous gases like skatol, hydrogen sulphide etc.