Thekabarnews.com—Several scientific studies suggest that using antiseptic mouthwash too often may have unintended health effects. This happens by affecting the helpful oral bacteria that control metabolism and blood pressure.

Researchers say that using too much antibacterial mouthwash could mess up the body’s nitric oxide pathway. This pathway is important for heart and metabolic health.

Scientists explain that certain bacteria in the mouth help convert dietary nitrates—commonly found in vegetables such as spinach and beetroot—into nitrites.

Later on, these compounds turn into nitric oxide, a molecule that helps blood vessels widen, blood flow improve, insulin sensitivity stay normal, and blood pressure stay healthy. Moreover, antiseptic mouthwash can kill these bacteria that break down nitrates. These substances could stop this natural biological process from happening.

A long-term study conducted by researchers from Harvard followed 945 adults over a period of three years. They found that individuals who used mouthwash twice daily faced a significantly higher risk of metabolic disorders.

The study found that people who used mouthwash often were 55 percent more likely to get prediabetes or diabetes than people who did not use it as often. Meanwhile, people who used mouthwash twice a day were more likely to get prediabetes than people who used it once a week.

About 30 percent of people who used mouthwash twice a day got prediabetes. However, only 20 percent of people who used it once a week did. No matter how old, active, or smoking the person was, the link stayed the same.

Another study from the University of Plymouth looked at how mouthwash helped the heart recover after exercise. For example, researchers discovered that mouthwash reduced the blood-pressure-lowering effects of exercise by about 60 percent after one hour. This effect was complete after two hours.

The study also found that when people used mouthwash after working out, their blood nitrite levels did not go up. This means that bacteria in the mouth are crucial for making nitric oxide.

Some clinical studies have also shown that antibacterial mouthwash can raise systolic blood pressure by 2 to 5 mmHg. Researchers say that even small changes in blood pressure can change the risk of heart disease in the long term. Even if the rise does not seem like much, the risk could shift.

Experts say that mouthwash is still important for keeping your mouth clean, especially if your dentist tells you to use it. Nevertheless, they say that people should not use them too often and should think about using gentler methods like saltwater rinses or oil pulling. These might help keep the mouth clean without killing the good bacteria.

Researchers are still looking into how changing the oral microbiome affects health over time. Researchers say current evidence suggests that moderate mouthwash use may help maintain cardiovascular and metabolic health.

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