Minimize the food supply for bacteria . The anaerobic bacteria that cause bad breath feed on protein rich foods . Vegetarians who eat less protein foods have much less problems with bad breath . Using mouthwashes too often can not always be that good for you as they contain chemicals , however you can use a mouthwash of baking soda dissolved in water daily without any risk .

Question: What may be a fact about this person ?
Answer: They are convincing someone to go vegetarian .They are convincing someone to stop eating meat .They are giving advice about bad breath .None of the above choices .