Bad odor can be felt in various parts of the body, not just from the mouth, so that undigested bits may emit an unpleasant odor.
Apples act as a natural deodorant for bad breath. Therefore the effective toothpaste and an enzyme that is responsible for the neutralization of breath, is the same one that causes the browning of fruits and vegetables.
Apples, lettuce and mint are rich in phenolic compounds, aromatic chemical compounds that react to bad breath. Therefore, regularly consume and get rid of bad breath.