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New study shows high-fat, high-sugar diets may hurt your navigation skillsand its easier to fix than you think

By Kristen Dalli of ConsumerAffairs
August 4, 2025
  • Findings from a recent study found that young adults who eat lots of refined sugar and saturated fat struggled more to remember locations in a virtual maze.

  • This effect held true even after adjusting for BMI and general working-memory ability.

  • Promisingly, experts believe these cognitive changes are reversible by choosing healthier foods.


Researchers at the University of Sydney wanted to understand how Western-style diets rich in refined sugars and saturated fats affect spatial navigation (the ability to learn and remember routes).

While previous animal studies pointed to problems with the hippocampus (a brain region tied to memory), this is the first human study to test that directly.

Participants were 55 university students, aged 1838, who self-reported their diets, had their BMIs measured, and took a basic workingmemory test.

The goal? To isolate the effects of diet on navigation skills, rather than body weight or memory capacity.

Weve long known eating too much refined sugar and saturated fat brings the risk of obesity, metabolic and cardiovascular disease, and certain cancers, researcher Dr. Dominic Tran said in a news release. We also know these unhealthy eating habits hasten the onset of age-related cognitive decline in middle age and older adults.

This research gives us evidence that diet is important for brain health in early adulthood, a period when cognitive function is usually intact.

The study

Participants completed a diet questionnaire, focusing on frequency of high-sugar and high-fat food intake. They then entered a virtualreality maze with landmarks scattered around.

  • Six practice runs: They searched for a treasure chest in under four minutes or else got teleported to it and studied its position for 10 seconds.

  • Seventh trial (memory test): The chest was removed. Participants had to point out where it had been relying purely on memory.

By comparing performance on that final test against diet, BMI, and memory scores, researchers isolated the impact of diet on spatial recall.

The findings

  • Clear pattern: Participants who reported higher fat and sugar consumption were significantly less accurate in pinpointing the former treasure location even after adjusting for BMI and working memory.

  • Hippocampus in the spotlight: The deficits were specific to spatial navigation, linking back to hippocampal functioning not overall cognition.

  • Reversible impact? Dr. Tran emphasizes that the effect is likely reversible: The good news is we think this is an easily reversible situation, he said. Dietary changes can improve the health of the hippocampus, and therefore our ability to navigate our environment, such as when were exploring a new city or learning a new route home.

Why it matters for you

You dont need to wait until mid-life to think about diet and brain health. This study shows cognitive performance can be affected now even in young adults with normal weight and good short-term memory. But the bright side is that the negative impact isnt permanent and can likely be improved with better food choices.

Its likely our participants were a little healthier than the general population and we think, if our sample better represented the public, the impact of diet on spatial navigation would likely be even more pronounced, Dr. Tran said.




Posted: 2025-08-04 13:50:49

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More News From This Category
Consumer News: Medicare launches coverage of GLP-1 weight-loss drugs
Tue, 30 Jun 2026 16:07:07 +0000

Three name-brand drugs are covered starting July 1

By Mark Huffman of ConsumerAffairs
June 30, 2026
  • Medicare will begin covering certain GLP-1 weight-loss drugs on July 1 through a new temporary pilot program called the Medicare GLP-1 Bridge.

  • Eligible beneficiaries will pay a flat $50 monthly copayment for approved medications including Wegovy, Zepbound, and Foundayo.

  • The demonstration, scheduled to run through the end of 2027, marks the first time Medicare has broadly provided coverage for obesity medications prescribed specifically for weight loss.

Beginning July 1, millions of Medicare beneficiaries will have access to popular GLP-1 weight-loss medications under a new federal demonstration program that dramatically reduces the cost of the drugs for eligible seniors.

The Centers for Medicare & Medicaid Services (CMS) is launching the Medicare GLP-1 Bridge, a temporary pilot program that will provide qualifying Medicare Part D beneficiaries with certain GLP-1 medications for a flat $50 monthly copayment through Dec. 31, 2027.

The initiative represents a significant shift in Medicare policy. Until now, Medicare generally covered GLP-1 drugs such as Wegovy and Zepbound only when prescribed for conditions such as Type 2 diabetes or certain cardiovascular diseases not for obesity alone, because federal law excludes coverage of drugs used solely for weight loss.

CMS Administrator Dr. Mehmet Oz called the medications "a major medical advancement" when announcing the program, saying too many older Americans have been unable to afford them because of their high cost.

Who qualifies

The new program is available to eligible Medicare beneficiaries enrolled in Part D prescription drug coverage who meet specific medical criteria and obtain prior authorization.

According to CMS, the program covers three medications:

  • Wegovy (injectable and oral forms)

  • Zepbound (KwikPen formulation)

  • Foundayo (oral tablet)

The medications are intended for patients who meet body mass index (BMI) requirements and other clinical eligibility standards established by CMS.

A temporary demonstration

Unlike traditional Medicare drug coverage, the GLP-1 Bridge operates outside the normal Part D benefit. CMS is using a centralized system to process prior authorizations, pharmacy claims, and payments, allowing beneficiaries to access the medications regardless of which Part D plan they have.

The agency says the demonstration is designed to test a new approach to expanding access to obesity treatments while gathering data on costs, utilization, and health outcomes before considering longer-term policy changes.

GLP-1 medications have become some of the most sought-after prescription drugs in recent years because clinical trials have shown they can produce substantial weight loss while also improving health outcomes for many patients with obesity.

However, physicians caution that older adults require careful monitoring. Side effects can include gastrointestinal problems, and experts warn that seniors may face increased risks of muscle loss, frailty, and malnutrition if treatment is not paired with adequate nutrition and physical activity.

Healthcare providers also emphasize that the medications are most effective when combined with lifestyle changes, including improved diet and regular exercise.


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Consumer News: American consumers are being bombarded with
Tue, 30 Jun 2026 16:07:07 +0000

A new survey finds that victims rarely report the crime

By Mark Huffman of ConsumerAffairs
June 30, 2026
  • A new Gallup/Stop Alliance survey finds that one in 10 U.S. adults said someone in their household lost money or gave scammers access to a financial account in 2025.

  • Nearly half of affected households reported losses exceeding $500, yet only a small minority reported the crime to law enforcement or federal authorities.

  • The findings suggest Americans overwhelmingly believe government and private companies need to do more to stop before they reach consumers.

Americans are facing an onslaught of increasingly sophisticated , but most victims never report the crimes to law enforcement, according to a new survey from Gallup and the Stop Alliance.

The nationwide survey found that about one in 10 U.S. adults said they or another member of their household were tricked by scammers in 2025 into losing money or giving criminals access to a financial account. Nearly half of those households reported losing more than $500.

The findings paint a picture of a country inundated by fraud attempts while lacking confidence that reporting will make a difference.

According to the survey, many victims chose not to contact authorities because they doubted they would recover their money or were unsure where to report the crime. Only a small share reported to local police or federal agencies, although more than half notified their bank or financial institution.

Just part of modern life

The Gallup findings mirror those of a separate Associated Press-NORC poll, which found that scam attempts have become a routine part of daily life for many Americans. More than half of adults said they receive suspicious texts, emails, phone calls, or online messages every day, while older Americans reported the highest rates of daily scam attempts.

The survey also found that scam losses are widespread. About half of the households that fell victim reported losing between $125 and $2,000, and roughly one in 10 adults said they had been scammed multiple times.

No confidence

Despite the prevalence of fraud, Americans expressed little confidence that enough is being done to combat it. According to the Gallup survey, about 80% of respondents believe the federal government is not doing enough to protect consumers from . Many also said banks, telecommunications companies, technology firms, and social media platforms should play a larger role in preventing fraudulent communications from reaching consumers.

The Stop Alliance, a nonprofit that advocates public-private cooperation to combat financial fraud, says prevention should become the primary focus. The organization argues that stopping scam calls, texts, and online messages before consumers ever see them would be more effective than relying on victims to recover losses afterward.


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Consumer News: Public health alert issued for chicken Caesar wraps
Tue, 30 Jun 2026 16:07:07 +0000

The products were sold at convenience stores in two states

By Mark Huffman of ConsumerAffairs
June 30, 2026
  • The USDA has issued a public health alert for ready-to-eat chicken Caesar wraps after routine testing found the products may be contaminated with Listeria monocytogenes.

  • The affected wraps were sold at Holiday convenience stores in Minnesota and Wisconsin and are no longer on store shelves, so no formal recall was issued.

  • Consumers who still have the wraps should not eat them and should throw them away or return them to the place of purchase.

The U.S. Department of Agriculture's (USDA's) Food Safety and Inspection Service (FSIS) has issued a public health alert for ready-to-eat chicken Caesar wrap products after routine testing detected Listeria monocytogenes, a potentially dangerous bacterium that can cause serious illness, particularly in pregnant women, older adults, and people with weakened immune systems.

Unlike a recall, the alert was issued because the products are no longer available for purchase. However, federal officials warned that some consumers may still have the wraps in their refrigerators and should not eat them.

The affected product is:

  • 8.7-ounce clear plastic-wrapped packages of "FRESH SEASONS Kitchen Chicken Caesar Wrap"

  • Sell-by date: June 24, 2026

  • Produced: June 16, 2026

  • Establishment number: P-45091 inside the USDA mark of inspection.

The wraps were distributed to Holiday convenience stores in Minnesota and Wisconsin.

Contamination discovered through testing

FSIS said the contamination was discovered during routine product sampling, when laboratory testing confirmed the presence of Listeria monocytogenes. As of the agency's announcement, no confirmed illnesses linked to the product had been reported.

Consumers who purchased the wraps should either discard them or return them to the store where they were purchased. Anyone concerned about possible illness should contact a healthcare provider.

Listeria infections can cause fever, muscle aches, headache, stiff neck, confusion, loss of balance, and convulsions, sometimes preceded by diarrhea


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Consumer News: Taking a long trip? Here’s how to avoid back pain
Tue, 30 Jun 2026 16:07:07 +0000

About 26% of U.S. adults report having an aching back

By Mark Huffman of ConsumerAffairs
June 30, 2026
  • Orthopedic specialists say long hours in planes, trains, and cars can aggravate back pain, but planning ahead can help prevent painful flare-ups.

  • Poor lumbar support, prolonged sitting, and lifting heavy luggage are among the biggest travel-related risks for the spine, according to Hackensack Meridian Health physicians.

  • Doctors recommend preparing before a trip with stretching, packing light, frequent movement, and supportive seating to reduce strain during peak travel season.

Its been said that sitting is the new smoking, since prolonged time in a chair can lead to several different health-related issues.

Unfortunately, prolonged sitting cant be avoided on long trips, but doctors say a little planning can make a big difference. As millions of Americans take to the roads, rails, and skies this summer, orthopedic specialists warn that long hours spent sitting can turn a vacation into a painful experience for travelers with back problems.

About 26% of U.S. adults report having back pain at any given time, and nearly one in 12 people worldwide lives with chronic low back pain. For many of them, extended travel can worsen symptoms, but spine specialists say taking preventive steps before and during a trip can significantly reduce the risk of flare-ups.

Hard on the spine

"Travel can place unexpected stress on the spine," said Dr. Dante Implicito, regional chair of orthopedic surgery at Hackensack Meridian Health.

He said that long periods of sitting, lifting luggage, sleeping in unfamiliar beds, and disruptions to normal routines can all contribute to episodes of low back pain or sciatica.

One of the biggest culprits is prolonged sitting. Airplane, train, and car seats often provide little lumbar support, causing the spine's natural curve to flatten. That places added strain on muscles and ligaments. Remaining in the same position for hours also reduces circulation, leading to muscle stiffness and fatigue that can make the spine more susceptible to pain.

Doctors say prevention should begin before travelers leave home.

"Spine care and preventive measures should start long before a scheduled trip," said Dr. Marc Levine, chair of orthopedics at Jersey Shore University Medical Center.

Before you leave

Orthopedic specialists recommend maintaining regular exercise and stretching routines in the days leading up to a trip, especially exercises that strengthen the core and improve flexibility. Travelers should also pack strategically, placing heavier items in rolling luggage rather than shoulder bags whenever possible.

People with chronic back conditions should pack any medications they may need and consider bringing portable lumbar cushions or neck pillows to improve support during long periods of sitting.

Once underway, movement becomes critical.

Experts advise standing up and walking every 30 to 60 minutes during flights or train rides when it's safe to do so. Drivers should schedule regular rest stops to stretch and walk around before continuing their trip. Even simple movements, such as shoulder rolls, ankle circles, and gentle spinal stretches while seated, can help reduce stiffness.

Maintaining good posture is equally important. Doctors recommend sitting with both feet flat on the floor, shoulders relaxed and the lower back supported. Travelers should avoid slouching or leaning forward for extended periods while using phones or laptops.

Hydration also plays a role. Drinking plenty of water helps maintain muscle function, while limiting alcohol can reduce dehydration that may contribute to stiffness.

Know when to seek medical care

Most travel-related back discomfort improves after returning to normal activity. However, doctors advise seeking prompt medical attention if pain is severe, lasts several days after returning home, or is accompanied by numbness, weakness, loss of bowel or bladder control, or pain radiating down the legs, which could signal a more serious spinal condition.

For travelers with chronic back pain, experts say the goal isn't to avoid vacations, but to travel smarter.

With a little preparation and regular movement, they say most people can enjoy their trips without bringing home an unwanted souvenir: a painful back.


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Consumer News: Organic moringa supplements recalled nationwide over possible Salmonella contamination
Tue, 30 Jun 2026 16:07:07 +0000

A tainted supply chain triggered the recall

By Mark Huffman of ConsumerAffairs
June 30, 2026
  • Total Nutrition Inc. has recalled two organic moringa supplements after a supplier warned of possible Salmonella contamination in the raw ingredient.

  • The recall affects one lot each of TNVitamins 100% Organic Moringa 1,200 mg Capsules and 100% Organic Moringa Powder sold nationwide.

  • No illnesses have been reported, but consumers are urged to stop using the products immediately and dispose of them.

Total Nutrition Inc. is recalling two organic moringa dietary supplements after a supplier initiated a recall of the raw moringa ingredient because of potential Salmonella contamination.

The Deer Park, New York-based company said the recall involves:

  • TNVitamins 100% Organic Moringa 1,200 mg Capsules (90-count bottles), Product No. AB9917, Lot 2800, expiration February 2028

  • TNVitamins 100% Organic Moringa Powder (96-gram jars), Product No. AB9904, Lot 2782, expiration May 2028 (U.S. Food and Drug Administration)

The affected lot numbers appear on the bottom of the container and near the barcode. Products with different lot numbers are not included in the recall.

The company said the recall was prompted by a supplier's notification that the raw organic moringa ingredient may have been exposed to Salmonella, a bacterium that can cause serious and sometimes fatal infections, particularly in young children, older adults, and people with weakened immune systems.

Healthy people infected with Salmonella commonly experience fever, diarrhea, nausea, vomiting, and abdominal pain. In rare cases, the infection can spread into the bloodstream and lead to more severe illnesses.

What to do

Total Nutrition said no illnesses have been reported in connection with the recalled products.

Consumers who purchased the affected supplements should not consume them and should dispose of the products immediately. The company has established a recall information page and refund process for affected customers.

The recall comes amid broader federal scrutiny of moringa-containing dietary supplements following multiple recalls earlier this year tied to potential Salmonella contamination in the supply chain.


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