Beetroot Juice Cuts Blood Pressure in 36 Older Adults in 2 Weeks by Reshaping Oral Bacteria
Updated
Updated · ScienceDaily · May 25
Beetroot Juice Cuts Blood Pressure in 36 Older Adults in 2 Weeks by Reshaping Oral Bacteria
7 articles · Updated · ScienceDaily · May 25
Thirty-six adults in their 60s and 70s saw blood pressure fall after drinking nitrate-rich beetroot juice twice daily for two weeks, an effect not seen with placebo juice or in 39 younger adults.
Bacterial gene sequencing showed the juice reshaped the oral microbiome in both age groups, but older adults had a drop in Prevotella and a rise in Neisseria—changes linked to better nitrate-to-nitric-oxide conversion.
That pathway matters because nitric oxide helps blood vessels relax, and its availability typically declines with age as blood pressure and cardiovascular risk rise.
The crossover trial, published in Free Radical Biology and Medicine, adds to evidence that oral bacteria can shape how dietary nitrate affects vascular health, though researchers said larger studies are needed before treating beetroot juice as more than a dietary aid.
Could a personalized diet, based on your unique mouth bacteria, be the future of blood pressure management?
If antiseptic mouthwash raises blood pressure, is your daily hygiene routine secretly harming your heart health?
Gut *Prevotella* can be beneficial, but oral *Prevotella* is harmful. How do we target the bad without harming the good?
Dietary Nitrate from Beetroot Juice Reduces Blood Pressure in Older Adults: Clinical Evidence and the Critical Role of the Oral Microbiome
Overview
Recent research highlights beetroot juice as a promising natural strategy for managing high blood pressure in older adults. The key lies in its rich inorganic nitrate content, which, after consumption, is converted in the body first to nitrite and then to nitric oxide—a compound that helps relax and widen blood vessels. This process leads to meaningful reductions in blood pressure and supports better cardiovascular health. The findings suggest that beetroot juice offers an effective, non-pharmacological approach to blood pressure control, opening new possibilities for improving heart health in aging populations.