
Study claims beetroot juice can lower blood pressure
The blood pressure-lowering effect of nitrate-rich beetroot juice may be attributed to specific changes in their oral microbiome, according to a study led by researchers at the University of Exeter in the UK.
Nitrate is crucial to the body and is consumed as a natural part of a vegetable-rich diet. In the study, when the adults drank a concentrated beetroot juice 'shot' twice a day for two weeks, their blood pressure decreased. However, the effect was not observed in the younger group, as revealed by the findings published in the journal Free Radical Biology and Medicine.
'This study shows that nitrate-rich foods alter the oral microbiome in a way that could result in less inflammation, as well as a lowering of blood pressure in older people. This paves the way for larger studies to explore the influence of lifestyle factors and biological sex in how people respond to dietary nitrate supplementation,' said Professor Andy Jones, of the University of Exeter.
The study recruited 39 adults aged under 30 and 36 adults in their 60s and 70s who spent two weeks taking regular doses of nitrate-rich beetroot juice and two weeks on a placebo version of the juice with nitrate stripped out.
The older age group experienced a notable decrease in the potentially harmful mouth bacteria Prevotella after drinking the nitrate-rich juice, and an increase in the growth of bacteria known to benefit health, such as Neisseria.
The team said that an imbalance between beneficial and harmful oral bacteria can decrease the conversion of nitrate (abundant in vegetable-rich diets) to nitric oxide.
Nitric oxide is crucial to the healthy functioning of the blood vessels, and therefore the regulation of blood pressure, the researchers explained.
'The good news is that if you don't like beetroot, there are many nitrate-rich alternatives like spinach, rocket, fennel, celery, and kale,' added Professor Anni Vanhatalo, from the varsity.
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Hans India
a day ago
- Hans India
Beetroot juice found to help lower blood pressure, study reveals
A new study claims that drinking beetroot juice may help lower blood pressure, thanks to its high nitrate content and its impact on oral microbiome balance. The findings, published in the journal Free Radical Biology and Medicine, highlight how dietary nitrates in vegetables could support cardiovascular health. Researchers from the University of Exeter, UK, discovered that nitrate-rich beetroot juice not only reduced blood pressure but also altered oral bacteria linked to cardiovascular function. The study involved participants consuming concentrated beetroot juice 'shots' twice daily for two weeks, followed by a placebo period. The researchers observed a decline in potentially harmful oral bacteria, such as Prevotella, and an increase in beneficial bacteria, including Neisseria, after the consumption of nitrate-rich juice. This shift is believed to improve the conversion of dietary nitrate into nitric oxide — a molecule essential for relaxing blood vessels and regulating blood pressure. Nitrate, commonly found in leafy green vegetables and root crops like beetroot, spinach, and celery, plays an essential role in vascular health. Nitric oxide derived from nitrate helps maintain proper blood flow and supports healthy cardiovascular function. An imbalance of oral bacteria, however, can reduce this conversion efficiency, potentially impacting blood pressure regulation. 'This study shows that nitrate-rich foods alter the oral microbiome in a way that could result in less inflammation and improved blood pressure regulation. It opens the door for more research on how diet and oral health influence cardiovascular outcomes,' said Professor Andy Jones, one of the study's authors. Lead researcher Professor Anni Vanhatalo added, 'The good news is, if you don't like beetroot, there are many other nitrate-rich options like spinach, rocket, fennel, celery, and kale. Including these in your diet could have similar benefits.' The study underscores the potential for simple dietary changes to influence cardiovascular health through microbiome modulation. As nitrate-rich foods are readily available and form a natural part of many plant-based diets, researchers believe this approach could provide a practical way to support heart health without medication. By showing how diet influences the oral microbiome and nitric oxide production, the findings highlight the broader relationship between nutrition, oral health, and cardiovascular wellness.


Hans India
6 days ago
- Hans India
Study claims beetroot juice can lower blood pressure
People with high blood pressure may benefit from drinking beetroot juice, claimed a study. The blood pressure-lowering effect of nitrate-rich beetroot juice may be attributed to specific changes in their oral microbiome, according to a study led by researchers at the University of Exeter in the UK. Nitrate is crucial to the body and is consumed as a natural part of a vegetable-rich diet. In the study, when the adults drank a concentrated beetroot juice 'shot' twice a day for two weeks, their blood pressure decreased. However, the effect was not observed in the younger group, as revealed by the findings published in the journal Free Radical Biology and Medicine. 'This study shows that nitrate-rich foods alter the oral microbiome in a way that could result in less inflammation, as well as a lowering of blood pressure in older people. This paves the way for larger studies to explore the influence of lifestyle factors and biological sex in how people respond to dietary nitrate supplementation,' said Professor Andy Jones, of the University of Exeter. The study recruited 39 adults aged under 30 and 36 adults in their 60s and 70s who spent two weeks taking regular doses of nitrate-rich beetroot juice and two weeks on a placebo version of the juice with nitrate stripped out. The older age group experienced a notable decrease in the potentially harmful mouth bacteria Prevotella after drinking the nitrate-rich juice, and an increase in the growth of bacteria known to benefit health, such as Neisseria. The team said that an imbalance between beneficial and harmful oral bacteria can decrease the conversion of nitrate (abundant in vegetable-rich diets) to nitric oxide. Nitric oxide is crucial to the healthy functioning of the blood vessels, and therefore the regulation of blood pressure, the researchers explained. 'The good news is that if you don't like beetroot, there are many nitrate-rich alternatives like spinach, rocket, fennel, celery, and kale,' added Professor Anni Vanhatalo, from the varsity.


Time of India
23-07-2025
- Time of India
Drinking THIS juice lowers blood pressure, even in older adults
Beetroot juice may help manage high blood pressure. A recent study shows it lowers blood pressure in older adults. Researchers at Exeter University found beetroot juice changes the oral microbiome. This effect is due to nitrate in beetroot. Nitrate converts to nitric oxide, which helps blood vessel function. The study suggests nitrate-rich foods benefit older adults' vascular health. High blood pressure is a silent killer. If not managed properly, it can lead to stroke, heart disease, kidney disease, and other chronic diseases. For older adults, managing blood pressure is especially tricky. What if lowering blood pressure is as simple as drinking a delightful juice? Yes, you read it right. You can now drink a certain juice and lower blood pressure. A recent study has found that drinking beetroot juice can help lower blood pressure, even in older adults. A study led by researchers at the University of Exeter found that beetroot juice has the potential to lower blood pressure in older people by changing the oral microbiome. The findings are published in the journal Free Radical Biology and Medicine . Before we dive into the miraculous effects of drinking beetroot juice, let's understand high blood pressure. What is high blood pressure High blood pressure, also known as hypertension, happens when the force of blood pushing against the artery walls is consistently too high. The pressure goes too high, 140/90 mmHg or higher. The normal blood pressure is less than 120/80 mm Hg. Over time, this high pressure damages the arteries and leads to serious complications like a heart attack and stroke. What makes hypertension dangerous is that you won't know whether you have it unless you check it. Because there are hardly any signs or symptoms. Almost half of the population is unaware that they are living with hypertension. Beetroot juice and high blood pressure (Pic courtesy: iStock) Previous studies have shown that a high nitrate diet can reduce blood pressure. This could slash the risk of many chronic diseases, including heart disease. This new study which is the largest study of its kind, looked at why the high nitrate diet lowers blood pressure, especially in older individuals. Nitrate is essential for the body and is a natural part of a vegetable-rich diet. The researchers found that in older adults who consumed a concentrated beetroot juice 'shot' twice a day for two weeks, the blood pressure lowered. Interestingly, this is effect was not seen in the younger group. Supreme Court Pushes Central Govt to Finalise FOPL: What It Means & Why It Matters? | Explained Oral microbiome's role To understand the effects of beetroot juice , the researchers studied 39 adults under the age of 30 and 36 adults in their 60s and 70s. The participants were given beetroot juice for two weeks and a placebo version with nitrate removed for another two weeks, with a washout period in between. The researchers found that nitrate-rich beetroot juice lowered blood pressure in older people due to the suppression of potentially harmful bacteria in the mouth. When there is an imbalance between beneficial and harmful oral bacteria, it can lead to a decrease in the conversion of nitrate (abundant in vegetable-rich diets) to nitric oxide. Nitric oxide is essential for the healthy functioning of the blood vessels and, therefore, the regulation of blood pressure. 'We know that a nitrate-rich diet has health benefits, and older people produce less of their own nitric oxide as they age. They also tend to have higher blood pressure, which can be linked to cardiovascular complications like heart attack and stroke. Encouraging older adults to consume more nitrate-rich vegetables could have significant long-term health benefits. The good news is that if you don't like beetroot, there are many nitrate-rich alternatives like spinach, rocket, fennel, celery, and kale,' study author Professor Anni Vanhatalo, of the University of Exeter, said in a statement. 'This study shows that nitrate-rich foods alter the oral microbiome in a way that could result in less inflammation, as well as a lowering of blood pressure in older people. This paves the way for larger studies to explore the influence of lifestyle factors and biological sex in how people respond to dietary nitrate supplementation,' co-author Professor Andy Jones, of the University of Exeter, said. 'This research is a great example of how bioscience can help us better understand the complex links between diet, the microbiome and healthy ageing. By uncovering how dietary nitrate affects oral bacteria and blood pressure in older adults, the study opens up new opportunities for improving vascular health through nutrition. BBSRC is proud to have supported this innovative partnership between academic researchers and industry to advance knowledge with real-world benefits,' Dr Lee Beniston FRSB, Associate Director for Industry Partnerships and Collaborative Research and Development at BBSRC, added.