Health
Drinking specific vegetable juice could reduce older adults’ blood pressure, study finds
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Beetroot juice, which is rich in nitrates, has been linked to changing the community of bacteria living in the mouth.
Now, a new study has found that drinking this juice could reduce older adults’ blood pressure.
Researchers at the University of Exeter compared the response of both younger and older participants to the juice and published the study in Free Radical Biology and Medicine.
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Thirty-nine participants under age 30, plus 36 individuals in their 60s and 70s, were split into two separate two-week phases.
One group consumed nitrate-rich beetroot juice shots daily, while the other group — a placebo group — received a version without nitrates. Each group had a “wash-out period” between phases to reset their systems.
Research reveals dietary nitrates from beetroot juice could improve certain adults’ vascular health. (iStock)
Researchers practiced bacterial gene sequencing to identify which microbes were present in the participants’ mouths before and after each treatment.
Older adults who drank nitrate-rich beetroot juice had fewer mouth bacteria called Prevotella, which is linked to inflammation, and more helpful bacteria like Neisseria.
“Foods that are high in dietary nitrates such as leafy greens, beets and lettuce can help lower blood pressure.”
Fox News senior medical analyst Dr. Marc Siegel told Fox News Digital that nitrates lead to lower blood pressure by improving flexibility, decreasing resistance in blood vessels and lowering inflammation.
The patients started the study with higher blood pressure, which went down after the beetroot juice — but blood pressure didn’t change with those in the placebo group.
“We know that foods that are high in dietary nitrates such as leafy greens, beets and lettuce can help lower blood pressure,” said Siegel.
Older adults who drank nitrate-rich beetroot juice had fewer mouth bacteria called Prevotella, which is linked to inflammation, and more helpful bacteria like Neisseria. (Natasha Breen/REDA&CO/Universal Images Group via Getty Images)
He added, “Nitrates are converted to nitric oxide by your body. Nitric oxide is a key molecule in vascular health as it promotes the vessels to dilate and thus reduces blood pressure.”
Co-author Andy Jones, a professor at the University of Exeter, said in a press release that the 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.”
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Lee Beniston, an associate director of the Biotechnology and Biological Sciences Research Council, said the “research is a great example of how bioscience can help us better understand the complex links between diet, the microbiome and healthy aging.”
“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,” Beniston added.
“As we age, our levels of bioavailable nitric oxide lower, so it makes sense that we see more of a benefit in consuming dietary nitrates in older patients.” (iStock)
Both researchers shared that more research is needed.
Siegel noted that “as we age, our levels of bioavailable nitric oxide lower, so it makes sense that we see more of a benefit in consuming dietary nitrates in older patients.”
He said the study does support the well-established belief that a good diet, high in fresh fruits and vegetables, can help manage many chronic medical conditions.
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Anyone with high blood pressure or other medical conditions should check with doctors or medical experts before making dietary changes. The same applies to those taking medication.
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Doctor reveals what 30 days without alcohol does to the brain and body amid Dry January
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After a season of bingeing and drinking, your body may feel like it needs a break from the party.
Dry January — a modern trend that challenges people to abstain from drinking for the first month of the year — has become a popular way to “detox” from the holidays and start the new year on a healthy note.
Research has linked alcohol to a variety of health conditions, ranging from hangovers to higher cancer risk.
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In a recent podcast episode of “The Dr. Mark Hyman Show,” Dr. Mark Hyman, chief medical officer of Function Health, shared how 30 days of not drinking alcohol can transform health.
Hyman, who is based in Massachusetts, called Dry January a “powerful way to see in real time how alcohol affects nearly every system of your body and how quickly those systems can recover.”
Dry January has become a popular way to “detox” from the holidays and start the new year on a healthy note. (iStock)
Alcohol’s toll on the brain and body
Hyman acknowledged that most people drink to feel happier and more comfortable in social situations. This effect is caused by the main ingredient in alcohol, called ethanol, which can also have toxic effects.
Instead of stimulating the brain, alcohol slows it down and loosens inhibitions. “You feel more relaxed, more social, more confident, maybe you feel a little euphoric,” Hyman said.
Alcohol’s effect on the brain can also lead to poorer decisions and slower reflexes, the doctor cautioned.
Drinking alcohol can cause cognitive decline and brain fog, experts warn. (iStock)
Drinking also impacts the prefrontal cortex of the brain, which Hyman described as “the adult in the room,” responsible for judgment, planning and restraint. “It goes offline early in drinking, which explains why people feel freer or act impulsively when they drink,” he said.
Even moderate drinking can cause metabolic stress, inflammation, impaired detoxification and hormonal shifts, Hyman said, which can impact nearly every organ system in the body.
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Alcohol consumption has also been linked to an increased risk of cancer, metabolic dysfunction, gut microbiome disturbances and mitochondrial toxins.
It can also prevent the body from falling into REM sleep, which is the deep rest recovery period when the immune system cleans out the day’s toxins, according to Hyman.
Alcohol can impact deep rest and mental health, according to experts. (iStock)
Memory loss, cognitive decline, anxiety, sleep disruption, dementia and cardiovascular disease are all known risks of long-term alcohol use, as well as liver complications like fatty liver disease.
“Bottom line, alcohol taxes every major system in your body, especially your liver, your brain, your gut, your hormones,” Hyman said.
The effects of 30 days with no alcohol
The first week after your last drink, the body begins to detoxify and reset, according to Hyman. Blood sugar and cortisol stress hormones level out, and the liver begins to process a “backlog of toxins.” The body also re-hydrates and re-energizes.
The first 30 days with no alcohol allows the body to balance itself out. (iStock)
The second week, the gut and brain will begin to re-balance, as hormones like serotonin and dopamine stabilize, gut inflammation drops and the microbiome begins to heal. Cravings for sugar and alcohol will wane and mental clarity returns, the doctor said.
Week three is marked by further decreases in inflammation, fatty liver and blood pressure. This can be noticeable in the skin, as puffiness and redness are reduced. Mood also begins to stabilize, with lower anxiety levels.
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In week four, the body experiences additional metabolic and immune benefits, Hyman shared, including more insulin sensitivity, which makes it easier to lose weight.
“You have a stronger immune response. You’re not getting sick as much. You have better deep sleep, balanced hormones, especially cortisol and testosterone,” he said. “And you see a big change in energy, confidence and focus.”
Abstaining from alcohol can help restore energy, according to experts. (iStock)
Dr. Pinchieh Chiang, a clinician at Circle Medical in San Francisco, said that Dry January isn’t a “detox,” but rather provides “feedback” from the body.
“It gives the body time to show people how it feels without alcohol. For many, that insight alone changes their relationship with drinking,” she said. “The biggest surprise isn’t what people give up, it’s how much better they feel.”
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The doctor confirmed that the first few days of not drinking may feel harder than expected, sometimes causing restlessness, cravings or disrupted sleep, but Dry January can ultimately change drinking habits for the remainder of the year.
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After a full year without alcohol, Chiang noted that health improvements are more profound. “We see sustained improvements in blood pressure, liver function and inflammation,” she said. “Those changes directly affect long-term heart disease and stroke risk.”
The risks of ‘all or nothing’
Some experts warn that adopting the Dry January trend could strengthen the urge to drink more in the other months, noting that some drinkers may find more success by slowly consuming fewer drinks per week.
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Thomas Stopka, Ph.D., an epidemiologist and professor in the public health and community medicine department at Tufts University School of Medicine in Massachusetts, shared in a Futurity report that for some people, “damp January” may be more suitable.
One expert warned that not all drinkers should quit “cold turkey,” as it could lead to severe withdrawals. (iStock)
“Dry January is well-intentioned, and it may work really well for the people who can stick to it, maybe even beyond January,” he said. “Other people may be more inclined to cut down on alcohol consumption rather than quit drinking completely for the month.”
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Stopka noted that successful harm-reduction approaches “aim to be judgment free.”
“Substance use disorder is a disease,” he said. “It takes time to treat the disease and to stay connected to the continuum of care — from prevention to treatment initiation to sustained therapy, whether through medication, self-help, or individual therapy or group support.”
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Those struggling with signs of alcohol use disorder should consult a medical professional for personalized guidance.
Fox News Digital reached out to several alcohol industry associations requesting comment.
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