There are many reasons that can cause bad breath, and people with this phenomenon should try to avoid eating a lot of onions, garlic, leeks and other strong-tasting foods in their daily lives. It is also recommended to avoid eating a lot of greasy, spicy food. For non-disease caused by bad breath, there is generally no special dietary contraindications, good oral care can be. It should be noted that oral diseases, gastrointestinal diseases, etc. may cause bad breath, and diet is only one part of the disease treatment. Therefore, if you have any abnormalities in your daily life, it is recommended that you actively consult a doctor who will develop an appropriate treatment plan and give you reasonable dietary advice according to your specific situation.