About 12 percent of Americans experience migraines, and a new study published in the American Society for Microbiology suggests they could be caused by bacteria in the mouth.

Though previous studies have shown that increased nitric oxide in the bloodstream is associated with migraines, new research based on data from the American Gut Project sheds light on how foods with nitrates also may trigger migraines.

Watch the video below from Business Insider to find out which foods, like hot dogs, to avoid if you suffer migraines:

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Members of the Greek Orthodox Dance Ministry ARETI perform during the Atlanta Greek Festival at the Greek Orthodox Cathedral of Annunciation in 2022. This year's festival, Thursday through Sunday, features food, shopping, performances, traditional dancing, music and more. (Miguel Martinez /AJC)

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Krog District, which includes food hall Krog Street Market, has sold to a new owner. (Brandon McKeown/Access Atlanta 2022)

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