Diet Plan for Patients of Bad Breath (Halitosis) Bad breathe is characterized by an unpleasant odor of the mouth. The human mouth produces different bacteria as like our healthy gut flora which is responsible for bad breath. Bad breath is caused by several reasons like; poor hygiene, oral infections, dental problems or production of different mouth bacteria. A healthy balanced diet with a lot of fresh fruit and vegetables can be very effective in fighting bad breath. Avoid foods having