Rats using a special nitrate mouthwash had their blood pressure drop significantly (15% systolic, 29% diastolic) after one week, while rats using regular mouthwash didn't see any change.

A special mouthwash with nitrate and antioxidants made rats' blood nitrate levels jump 32 times higher than regular mouthwash after one week, which might help their heart health.

In rats, higher levels of certain mouth bacteria were linked to lower blood pressure, showing how the mouth's bacteria might help control blood pressure.

If you eat more foods rich in nitrate—like spinach or beets—your blood pressure might drop a little bit each day, and this effect is even stronger if you already have high blood pressure. It could be a natural way to help manage blood pressure without pills.

The link between oral bacteria that convert nitrates to nitrites and blood pressure is stronger in people who don't have high blood pressure already.

In rats, higher nitrate levels in blood and saliva were linked to lower blood pressure, showing how the body's nitrate system might help control blood pressure.