Can eating garlic and onions cause bad breath (halitosis)?

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  1. American Dental Association
     

    What you eat affects the air you exhale, like garlic or onions. If you don't brush and floss daily, particles of food can remain in the mouth, collecting bacteria, which can cause bad breath. 

    If you’re concerned about what’s causing your bad breath, make an appointment to see your dentist. Regular checkups allow your dentist to detect any problems such as gum disease or dry mouth. 

    More Related Answers from American Dental Association
    What you eat affects the air you exhale, like garlic or onions. If you don't brush and floss daily, particles of food can remain in the mouth, collecting bacteria, which can cause bad breath.  If you’re concerned about what’s... More
  2. Dr. De Vizio
     
    Dr. De Vizio of Colgate answered:

    You do not need to stop eating these products, but be aware that the oils from garlic and onions can stay in your system and cause bad breath (halitosis) for a couple of days. Clove oil, eucalyptus, peppermint, sage, tea tree oil, thyme oil, and caraway help to inhibit bacteria growth and some can be taken before eating. Chewing parsley after eating can help also.

    More Related Answers from Colgate
    You do not need to stop eating these products, but be aware that the oils from garlic and onions can stay in your system and cause bad breath (halitosis) for a couple of days. Clove oil, eucalyptus, peppermint, sage, tea tree oil, thyme oil, and... More
  3. Dr. Tom Berry
     
    Dr. Tom Berry answered:
    Some foods like onions and garlic can be detected on the breath for up to 3 days after consumption. After the food is absorbed into the blood stream, odors are transferred to the lungs where they are expelled. Mouthwashes can mask these odors for a short period of time.
    More Related Answers from Dr. Tom Berry
    Some foods like onions and garlic can be detected on the breath for up to 3 days after consumption. After the food is absorbed into the blood stream, odors are transferred to the lungs where they are expelled. Mouthwashes can mask these odors for a... More