There are more causes that can cause bad breath, and people with this phenomenon can eat more oranges, lemons, honey and hawthorn in moderation in their daily lives. The diet as a whole should be light and fresh green vegetables and seasonal fruits can be increased appropriately. Remember to rinse your mouth with water or brush your teeth promptly after eating. It is important to note that oral diseases and gastrointestinal disorders can cause bad breath, and that diet is only one part of the treatment. Therefore, if you have any abnormalities in your daily life, it is advisable to seek medical advice so that your doctor can develop an appropriate treatment plan and give you sound dietary advice.