Reaching for mouthwash might seem like a smart way to freshen your breath and kill germs, but science suggests it could be harming more than helping.
A recent study published in the Journal of Medical Microbiology reveals that mouthwash, especially those containing strong antiseptics like chlorhexidine, can disrupt the delicate balance of bacteria in your mouth¹. While we often think of bacteria as bad, your mouth actually relies on a healthy microbiome to support everything from digestion to heart health.
The study found that using antibacterial mouthwash can wipe out beneficial bacteria responsible for producing nitric oxide, a compound essential for maintaining healthy blood pressure and blood vessel function. In fact, people who used antiseptic mouthwash twice daily showed a noticeable reduction in nitric oxide levels, which has been linked to increased cardiovascular risk¹.
Even more concerning, frequent mouthwash use can lead to an overgrowth of harmful bacteria once the beneficial ones are eliminated. This imbalance may contribute to issues like bad breath, gum disease, and even reduce your body’s natural defense mechanisms.
So, while mouthwash promises a quick burst of minty freshness, it could be silently undermining your overall health. Instead, focus on brushing, flossing, and using natural rinses, such as saltwater or aloe vera, if needed. Your mouth—and your heart—will thank you.
