Can Mouthwash Raise Your Blood Pressure?


  • Antiseptic compounds in mouthwash may destroy beneficial oral bacteria that are important for maintaining blood pressure, thereby contributing to high blood pressure levels
  • The use of the mouthwash containing the antiseptic chlorhexidine twice daily was associated with a significant increase in systolic blood pressure after one week
  • In a separate study, those who used mouthwash twice a day or more were more likely to develop high blood pressure than those who used it less often or not at all
  • A “major shift” in the salivary microbiome was noted after chlorhexidine mouthwash usage, triggering more acidic conditions, which favor increased dental caries, and lower nitrite availability and oral nitrate-reducing bacteria, which affect heart health
  • For optimal oral and overall health, you need to cease killing microbes in your mouth, and a key way to do this is by not using antimicrobial mouthwashes

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