Khaberni - Recently, videos on social media have claimed that mouthwash can raise blood pressure and destroy heart health by killing "friendly" bacteria in the mouth. So, what is the scientific truth behind these claims?
Mouth and Heart Bacteria
In our mouths live a complex ecosystem of bacteria that support vital functions; some of these bacteria convert "nitrates" found in leafy vegetables into "nitrites". When we swallow nitrite, the body converts it into nitric oxide, a gas essential for dilating blood vessels and regulating blood pressure, and for supporting muscle and brain functions.
Small studies have shown that using certain strong types of mouthwash can disrupt this process, according to "Science Alert", but what influencer videos ignore is the type of active ingredient; most research linking mouthwash with increased blood pressure used "chlorhexidine" (Chlorhexidine).
What is Chlorhexidine?
Chlorhexidine is a very strong disinfectant usually prescribed only for specific conditions, such as severe gum disease or after surgeries, and it is very effective in killing bacteria, including those beneficial to the heart.
Conversely, studies have found that daily, mild types of mouthwash available in stores have much less effect on these bacteria, and they generally do not cause an increase in blood pressure.
Risks
In addition to the possible impact on blood pressure, some studies suggest that long-term use of alcohol-based mouthwash may be associated with other risks, such as a deficiency in vitamin B12 in users of some strong disinfectants.
How to Choose the Best Mouthwash?
Moderation is the key, so do not discard mouthwash, but use it moderately and choose alcohol-free mild types for daily use.
Make sure to read the ingredients, and avoid daily continuous use of the types that contain "chlorhexidine" or "cetylpyridinium chloride" unless advised by a doctor.
And always know that the basis of hygiene is cleaning the teeth with brushing and flossing, which remains fundamental; a study that lasted 19 years linked good oral hygiene with reduced mortality risks from heart disease.
