For bad breath to figure out the cause of it, whether it is an oral problem or respiratory problem, or gastroenterology Helicobacter pylori infection problem, they can lead to the emergence of bad breath factors. There are some diets that can effectively alleviate bad breath, you can pay attention to, as follows: 1, usually can chew some gum, chewing gum will contain mint and aromatic smell of the leaves, can make the breath fresher; there are some aromatic toothpaste, gargle, can ensure that the mouth smells good. 2, usually can eat some pomelo, pomelo itself aromatic can deodorize; 3, there is also with the Lemon soak water to drink, lemon heating water soak water can also stimulate saliva production, can reduce the taste of bad breath. 4, drink honey water can also be effective in alleviating the taste of bad breath. 5, there are eating plums this snack, because plums can also promote the oral secretion of saliva, but also has to reduce the taste of bad breath. These diets can alleviate the odor in the mouth, of course, but also to further look for the specific disease of bad breath, symptomatic treatment, treatment will be more effective.