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Sugary Gum Boosts Nitrite Levels, Study Finds
28 Jul
Summary
- Sugary gum increased nitrite in the mouth by 45%.
- Blood pressure saw a modest drop after chewing gum.
- Researchers do not recommend regular consumption of sugary gum.

A recent study published in the British Journal of Clinical Pharmacology has revealed an unexpected effect of chewing sugary gum. Researchers at King's College London found that when participants chewed sugary gum after consuming beetroot juice, it temporarily boosted nitrite production. This process is linked to blood pressure regulation, as dietary nitrates from sources like beetroot are converted by oral bacteria into nitrites, which then form nitric oxide to relax blood vessels.
The study involved 14 volunteers who chewed either sugary or sugar-free gum after drinking beetroot juice. The findings indicated that sugary gum significantly lowered saliva pH, increasing oral nitrite production by 45% and bloodstream nitrite levels by 25%. This biochemical shift corresponded with a slight decrease in systolic and diastolic blood pressure compared to those who chewed sugar-free gum.
Despite these findings, the lead researchers are explicit in their recommendation against regular consumption of sugary gum due to dental health risks. They suggest that their work serves as a proof of concept, indicating that the body's processing of dietary nitrates could potentially be improved. Future research will focus on developing safer, tooth-friendly alternatives that offer similar cardiovascular benefits.