Researchers at King's College London have uncovered an unexpected connection between chewing sugary gum after eating nitrate-rich vegetables and a temporary reduction in blood pressure. The findings suggest that, under specific conditions, sugary chewing gum can help the body make better use of dietary nitrate found in foods such as beetroot, spinach, and kale.
Nitrate naturally accumulates in vegetables from the soil, but it does not benefit the body until bacteria in the mouth convert it into nitrite. Nitrite helps relax and widen blood vessels, improving blood flow and contributing to lower blood pressure.
How Mouth Acidity Affects Nitrate Conversion
Scientists have long known that oral bacteria are essential for converting nitrate into nitrite. Because this process limits how much nitrate the body can use, researchers have been searching for ways to make the conversion more efficient.
One possibility is that increasing the acidity of saliva could speed up this chemical reaction. To investigate, the research team tested whether chewing sugar-containing gum, which lowers the pH inside the mouth, would increase nitrite production.
