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Brain and memory are boosted by eating one particular diet, study finds

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Brain and memory are boosted by eating one particular diet, study finds

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The Mediterranean diet has continuously shown benefits for overall health.

Researchers at the Tulane University School of Medicine in New Orleans recently discovered that the diet is linked to improved memory through balanced bacteria in the gut.

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In the study, which was published in the journal Gut Microbe Reports, rats were fed a Mediterranean-style diet over a 14-week period. This included foods rich in olive oil, fish and fiber.

MEDITERRANEAN DIET COULD HELP WOMEN LIVE LONGER, HARVARD STUDY FINDS

Compared to those who ate a Western diet high in saturated fat, the rats that consumed the Mediterranean diet showed increases in four types of beneficial gut bacteria and decreases in five other types.

Researchers at the Tulane University School of Medicine recently discovered that the Mediterranean diet is linked to improved memory through balanced bacteria in the gut. (iStock)

The rats were then tasked with maneuvering a series of mazes that tested their memory.

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Those that were on the Mediterranean diet exhibited improved performance in the maze challenges.

“This study reinforces how the foods we choose can profoundly impact our gut microbiome and, in turn, our cognitive performance.”

The researchers deduced that individuals who follow the Mediterranean diet develop different gut bacteria patterns compared to those following a “typical Western diet,” and that those gut changes were associated with learning and memory.

MEDITERRANEAN DIET COULD HELP REDUCE BELLY FAT AND MUSCLE LOSS CAUSED BY AGING, STUDY FINDS

“Our results suggest that there may be a relationship between diet-modulated microbiota, peripheral immune function and cognitive function,” the research concluded. 

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“Additional studies are needed to determine the causality between diet-modulated gut microbiota, immune function and cognitive function, and to explore additional brain mechanisms.”

Gut microbiome developed by certain dietary choices can improve cognitive function, the study suggested. (iStock)

The Mediterranean diet group also demonstrated improved cognitive flexibility and working memory – and maintained lower levels of “bad” cholesterol.

Cory Mygrant, a California-based registered dietitian nutritionist at WellTheory, was not involved in the study but shared her reactions.

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“As a dietitian, I’m thrilled to see more evidence highlighting the Mediterranean diet’s incredible power, not just for heart health but also for brain health,” she told Fox News Digital.

“This study reinforces how the foods we choose can profoundly impact our gut microbiome and, in turn, our cognitive performance.”

The Mediterranean diet group demonstrated improved cognitive flexibility and working memory, and maintained lower levels of “bad” cholesterol. (iStock)

Gut health is considered “foundational to overall well-being,” Mygrant noted, as it influences “everything from immunity to mental health.”

“The Mediterranean diet is a fantastic option for supporting this vital system,” she continued. “Rich in vibrant, flavorful foods, it can easily be woven into daily life with simple adjustments.”

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“The Mediterranean diet has been associated with a 50% lower risk of cognitive decline and dementia.”

In an interview with Fox News Digital, study co-author Demetrius Maraganore, MD, a neurology professor at Tulane University, emphasized the difference in cognitive function and gut microbial compositions between the Mediterranean and Western diets.

The Western diet’s reduced gut bacterial diversity and over-growth of bacterial species is similar to what is observed in Alzheimer’s patients, he told Fox News Digital.

The researchers aim to develop novel therapies to prevent and treat Alzheimer’s disease by harnessing nutrition and gut microbiome. (iStock)

The expert noted that adhering to the Mediterranean diet may improve scholastic and work performance.

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“The Mediterranean diet has been associated with a 50% lower risk of cognitive decline and dementia, and promotes higher global intelligence, memory function and executive function across the lifespan,” he stated.

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Tips for going Mediterranean

To begin adopting a more Mediterranean-style diet, Mygrant suggested the following simple steps:

  1. Swap butter for olive oil
  2. Add an extra serving of veggies to meals
  3. Experiment with plant-based proteins, like lentils or chickpeas
  4. Enjoy fish a couple of times a week
  5. Snack on nuts or fresh fruits instead of ultra-processed foods

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“It’s about celebrating real, whole foods while keeping things flexible and enjoyable,” she said.

Mygrant acknowledged that accessing fresh produce and Mediterranean staples can be challenging for some, but noted that the diet does not have to be “all or nothing.”

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A dietitian recommended adding more fish and vegetables to a daily diet, as well as nuts, fresh fruits and olive oil. (iStock)

“You can start by making small, affordable swaps — like using canned fish, frozen vegetables and whole grains — and gradually increase the focus on more plant-based foods,” he suggested.

“The goal is to make nourishing choices more accessible, no matter your circumstances, while prioritizing the connection between food and well-being.”

In future research, the Tulane team aims to develop novel therapies to prevent and treat Alzheimer’s disease by harnessing nutrition and gut microbiome changes, according to Maraganore.

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DWTS Contestant Andy Richter, 59, Opens up About Painful Weight-Shaming

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DWTS Contestant Andy Richter, 59, Opens up About Painful Weight-Shaming


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America’s obesity crisis meets the Ozempic boom as data reveals GLP-1 hot spots

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America’s obesity crisis meets the Ozempic boom as data reveals GLP-1 hot spots

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With new agreements from President Donald Trump promising lower prices on popular weight-loss drugs, the use of GLP-1 medications such as Ozempic and Mounjaro could soon surge even higher — a trend already spreading unevenly across the U.S., with some states seeing greater uptick than others.

Based on insurance claims data from Purple Lab, a Pennsylvania health analytics company, a 2024 report published by GLP-1 Newsroom broke down the estimated number of weight-loss and diabetes drug prescriptions per state.

The prescription records came from both commercial and government insurers, and they don’t include people who paid cash, used telehealth providers, used compounded versions or were uninsured — which means the actual numbers are likely higher.

WHY MICRODOSING OZEMPIC COULD BECOME AS COMMON AS TAKING A MULTIVITAMIN

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The report identified the following states where more than 15% of the state’s population received GLP-1 prescriptions for weight loss or diabetes control. 

A report identified the following states where more than 15% of the state’s population received GLP-1 prescriptions for weight loss or diabetes control.  (iStock)

Take a look at the list below.

  • West Virginia – 24%
  • Kentucky – 22%
  • Louisiana – 20%
  • Oklahoma – 20%
  • Alabama – 19%
  • Mississippi – 19%
  • North Dakota – 18%
  • Alaska – 17%
  • Arkansas – 17%
  • Pennsylvania – 17%
  • Iowa – 16.5%
  • Michigan – 16%
  • Ohio – 14.5%
  • Georgia – 15%
  • Kansas – 15%
  • Tennessee – 15%
  • Texas – 15%

WEIGHT-LOSS DOCTOR SHARES HOW GLP-1S COULD REWIRE BODY AGAINST DISEASE

The highest GLP-1 usage rates were concentrated in the South, Midwest and Appalachia, likely due to their higher obesity and diabetes rates.

The report also identified these lowest-usage states, mostly in coastal and Western regions. Hawaii had the lowest overall prescriptions.

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The highest GLP-1 usage rates were concentrated in the South, Midwest and Appalachia, likely due to their higher obesity and diabetes rates. (iStock)

See the list below.

  • Florida – 10%
  • Maryland – 10%
  • Wisconsin – 10%
  • Washington – 9%
  • California – 9.5%
  • Nevada – 8%
  • Oregon – 8%
  • Arizona – 8%
  • Colorado – 8%
  • Utah – 8%
  • Rhode Island – 7.5%
  • Hawaii – 5%

COULD GLP-1 WEIGHT-LOSS MEDICATIONS LIKE OZEMPIC BECOME THE ‘EVERYTHING DRUG’?

Dr. Brett Osborn, a Florida neurologist and longevity expert who often prescribes GLP-1 medications to his patients, takes a daily microdose each day to promote heart health.

“These agents are primarily prescribed for type 2 diabetes, but the tides are turning — and soon, in my humble opinion, they will be used more to treat obesity (or categorically ‘overweight’ individuals), absent diabetes, although there is typically a high degree of crossover between the two conditions,” Osborn told Fox News Digital.

“My guess is that these medications are being prescribed more so in states such as Kentucky, West Virginia and other Midwestern states where obesity and diabetes are rampant,” a longevity doctor said. (iStock)

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The doctor also predicts that GLP-1s will soon be used to treat or prevent vascular disease, temper drinking, address gambling addiction, slow cognitive decline and likely as a complement to chemotherapy cancer treatments.

“Prescribing practices and indications are expanding rapidly, and therefore, we must be careful about our conclusions,” Osborn said. “That said, my guess is that these medications are being prescribed more so in states such as Kentucky, West Virginia and other Midwestern states where obesity and diabetes are rampant.”

Obesity rates by state

The Trust for America’s Health recently released its State of Obesity report, which is based on 2024 data from the CDC’s Behavioral Risk Factor Surveillance System.

The report lists the following 10 U.S. states as having the highest adult obesity rates, all of which are located in the South or Midwest. 

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In nine of the 10 states, at least 15% of the population have GLP-1 prescriptions, according to insurance claims data.

Previous studies have shown that GLP-1 drugs can reduce alcohol intake and cravings. (iStock)

  • West Virginia – 41.4%
  • Mississippi – 40.4%
  • Louisiana 39.2%
  • Alabama – 38.7%
  • Arkansas – 38.4 %
  • Oklahoma – 37.9 %
  • Kentucky – 37.7 %
  • Tennessee – 37.2 %
  • Indiana – 36.9 %
  • Texas – 36.8 %

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Overall, 19 states had adult obesity rates of at least 35%, compared with 23 states the previous year.

This was also the first time that no state had an adult obesity rate below 25%, according to the report.

Overall, 19 states had adult obesity rates of at least 35%, compared with 23 states the previous year, according to a recent report. (iStock)

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Below are the states with the lowest rates of obesity, according to the report.

  • District of Columbia – 25.5%
  • Colorado – 25%
  • Hawaii – 27%
  • Massachusetts – 27%
  • California – 27.6%
  • Florida – 28%
  • New Jersey – 28.2%
  • Washington – 28.8%
  • Vermont – 29%
  • New York – 29.1%

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“Structural barriers to healthy eating and physical activity need continued policy attention and investment,” said J. Nadine Gracia, M.D., president and CEO of Trust for America’s Health, in a statement.

CLICK HERE FOR MORE HEALTH STORIES

“It is vital that government and other sectors invest in – not cut – proven programs that support good nutrition and physical activity and ensure they reach all communities.”

Fox News Digital reached out to GLP-1 manufacturers requesting comment.

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Best Healthy Desserts for Weight Loss, According to a Dietitian

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Best Healthy Desserts for Weight Loss, According to a Dietitian


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