Health
6 'healthy eating concepts' are evaluated as true or false by nutrition experts
When it comes to ideas about healthy eating, there are all sorts of rules, trends and advice about what’s good for you and what isn’t.
Some of the guidance may be legitimate — yet some of it should be taken with a grain of salt.
Multiple experts and researchers from Mass General Brigham in Boston investigated some popular diet concepts that have been circulating — and separated fact from fiction.
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Here are six popular concepts — and a clear explanation of whether they hold water or not, according to experts.
True or false?
1. ‘To live longer, women should follow the Mediterranean diet’
True. In recent studies, the Mediterranean diet has been shown to be beneficial for overall health.
Mass General Hospital researchers evaluated six myths about healthy eating, including plant-based diets and peanut butter for kids. (iStock)
Mass General supports this theory, referencing its own study that found women who followed the nutrition plan for more than 25 years had up to 23% lower risk of mortality, with reductions in cardiovascular and cancer-related deaths.
The study also found that introducing a single component of the diet led to a 5% reduction in the long-term risk of death from certain diseases.
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The Mediterranean diet incorporates healthy foods like fruits, vegetables, legumes, olive oil, nuts and fish, while avoiding sugar and processed or red meats.
Most people don’t realize the impact diet has on health and longevity, according to Samia Mora, M.D., director of the Center for Lipid Metabolomics at Brigham and Women’s Hospital.
The Mediterranean diet includes foods like fruits, vegetables, legumes, olive oil, nuts and fish, while avoiding sugar and processed or red meats. (iStock)
“What we eat today has major implications for living a long and healthy life,” she wrote in a statement to Fox News Digital.
“The benefits [of the Mediterranean diet] were seen for both cancer and cardiovascular mortality – the top two causes of death for women and men – and related to multiple biological mechanisms, in particular to lower inflammation and insulin resistance and improved metabolism.”
2. ‘Removing trigger foods is always the best treatment for digestive issues’
False. While some people do suffer from food allergies or autoimmune conditions, the experts at Mass General found this diet concept to be false overall — as many digestive symptoms are known to have “more complex causes.”
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When patients have bad reactions to certain foods, it’s not the food itself causing the issues, but the digestive tract’s response to eating “in general,” according to Kyle Staller, M.D., director of the Gastrointestinal Motility Laboratory at Massachusetts General Hospital.
A poor digestive response might not just be caused by the food you’re eating, a doctor said. (iStock)
“While some people have true allergies to certain foods (for example, an allergy to gluten in celiac disease) or an inability to digest certain foods (such as dairy in lactose intolerance), many symptoms attributed to specific foods are actually driven by your body’s response to eating,” he told Fox News Digital.
Eating starts a “cascade of nerve activity in the gut” regardless of the kind of food that’s eaten, according to Staller.
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Those with sensitive gut nerves can develop GI discomfort in the form of gas, bloating and a feeling of abnormal fullness.
“These are what we call ‘disorders of gut-brain interaction’ — feeling abnormal sensations even when digestion is seemingly working normally,” Staller said.
Eating starts a “cascade of nerve activity in your gut” regardless of the kind of food that’s eaten, a doctor said. (iStock)
“Irritable bowel syndrome (IBS) is the most classic example.”
The best way to alleviate these symptoms is to target the abnormal nervous system responses while only eliminating the “most troublesome” foods, according to Staller.
3. ‘Eating blueberries can decrease the risk of some eye diseases’
True. The researchers found this claim to be true: Blueberries indeed can be beneficial for your eyes.
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A Mass General study of nearly 40,000 U.S. middle-aged and older women found that one or more servings of blueberries per week was associated with a 28% lower risk of age-related macular degeneration (AMD), an eye condition that can lead to significant vision loss.
One or more servings of blueberries per week was associated with a 28% lower risk of conditions that cause vision loss. (iStock)
Dr. Howard D. Sesso, director of nutrition and supplements research at Brigham and Women’s Hospital, confirmed that blueberries can optimize eye health.
“Blueberries contain anthocyanins, a bioactive polyphenol that gives them their blue color, and has been linked with possible reductions in eye disease,” he told Fox News Digital.
4. ‘Following a plant-based diet will always improve health outcomes’
False, with caveats. Mass General experts say a plant-based diet is not always the best way to go, though it may seem super healthy.
Plant-based nutrition plans have “diverse and sometimes contrasting health effects,” according to Dr. Qi Sun, associate professor of medicine at Brigham and Women’s Hospital.
“Diet is not a magic bullet by itself.”
A plant-based diet that is dense in refined grains, sugary beverages and candies differs greatly from one containing fresh fruits and vegetables, whole grains, coffee, tea and more, he noted.
Plant-based diets should be well-rounded to include fruits, vegetables and whole grains, according to an expert. (iStock)
The first diet is associated with “many adverse health outcomes,” according to the researchers.
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The second diet is considered a “healthy version of a plant-based diet,” which Sun said has been “robustly associated with better health outcomes, including lower risk of developing diseases such as diabetes, obesity and gout.”
The “healthy version” of a plant-based diet is proven to lower the risk of developing diseases such as diabetes, obesity and gout, experts say. (iStock)
In a statement sent to Fox News Digital, Sun encouraged people to focus on quality ingredients — such as fresh fruits, non-starchy vegetables, whole grains, legumes and nuts, and olive oil and other vegetable oils — and to limit sugary and salty foods.
“Don’t forget regular activity and other healthy lifestyle choices,” he advised. “After all, diet is not a magic bullet by itself.”
5. ‘Food location in the grocery store has no impact on purchases’
False. Mass General deemed this concept as flat-out “false,” as the “choice architecture” of the grocery store “strongly influences what we purchase.”
When healthy items are stocked in visible or convenient locations, that increases the likelihood of making a healthier choice, according to the researchers.
“Healthy choice architecture” refers to when healthy items are stocked in visible or convenient locations, Mass General reported. (iStock)
In the Mass General Hospital cafeteria, the foods and beverages are labeled as red, yellow and green – red being the least healthy and green being the most healthy.
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The researchers found that when the healthiest items were in convenient locations or at eye level, employees were more likely to make healthier choices.
Anne Thorndike, M.D., primary care physician at Massachusetts General Hospital, shared with Fox News Digital that the opposite is also true.
People are more likely to choose food items that are convenient and visible, researchers said. (iStock)
“This is well-known by the food industry, which has been placing sugar-sweetened beverages, salty snacks, candy and baked goods in checkout lanes, aisle endcaps and at the front of store,” she said.
6. ‘Early introduction of foods like peanut butter can prevent allergies’
True. Introducing a small child to foods known to cause allergic reactions can be scary for parents, but Mass General confirmed it can be beneficial in the long run.
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Introducing “developmentally appropriate” forms of peanuts to children between 4 and 6 months old can cause an 80% reduction of peanut allergy in those who are at high risk, according to the LEAP Trial (Learning Early About Peanut Allergy).
Introducing “developmentally appropriate” forms of peanuts to children between 4 and 6 months old can lead to an 80% reduction in peanut allergy in those who are at high risk. (iStock)
Michael Pistiner, M.D., director of Food Allergy Advocacy, Education and Prevention at Mass General Hospital for Children, stressed that these findings show that “timing is important.”
“Once a child reaches a pediatric allergist, it might be too late to prevent some food allergies that could have been avoided with early allergen introduction and family education,” he told Fox News Digital.
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Pistiner added, “With limited access to allergy providers and long wait times that can exceed three months, primary care clinicians play a crucial role in supporting families through infant feeding, early allergen introduction, eczema management, and food allergy diagnosis and referral.”
Every day we’re faced with a zillion small choices: Go to sleep early, or watch one more episode of that Netflix drama. Call an old friend to catch up, or cruise social media. Of course, no single action will guarantee a long, healthy life or doom you to an early grave. But those little daily decisions do add up, and over the long term they can make a difference when it comes to both your longevity and your health span, the amount of life spent in relatively good health.
Scroll through this theoretical “day in the life” and select the option that best fits your typical day. Not every situation will apply perfectly, but think about which choice you’d be most likely to make. This isn’t a formal scientific assessment. The goal here isn’t to assign you a “good” or “bad” score, but to help you understand the central factors that shape the way we age and how long we live.
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A study from Harvard Medical School indicates natural selection has favored the red hair gene, resulting in a potential increase in the number of redheaded people as humanity continues to evolve.
By analyzing nearly 16,000 ancient genomes spanning 10,000 years, researchers identified a list of traits that nature is actively pushing forward. Among the most prominent were the genetic variants for red hair.
“Perhaps having red hair was beneficial 4,000 years ago, or perhaps it came along for the ride with a more important trait,” the authors noted.
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The study, published in the journal Nature, relied on a large database of ancient DNA from West Eurasia. Using new computing methods, the team was able to filter out random fluctuations in DNA to identify what it called “directional selection.”
Directional selection happens when a particular version of a gene gives an organism a strong survival or reproductive advantage, causing it to become more common in a population faster than it would by chance, according to experts.
Directional selection is when a specific gene provides such significant benefits that it rises in frequency across a population much faster than random chance. (iStock)
Prior to this study, scientists only knew of about 21 such instances in human history, one of which was lactose tolerance. This new research uncovered hundreds more.
“With these new techniques and a large amount of ancient genomic data, we can now watch how selection shaped biology in real time,” Ali Akbari, first author of the study and senior staff scientist in the lab of Harvard geneticist David Reich, said in a press release.
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The data showed that genetic markers for red hair are among 479 gene variants that have been strongly favored over the past 10,000 years. One likely explanation, the researchers said, is a major shift in human history: the transition to farming.
Scientists have long pointed to vitamin D synthesis as a likely driver for the rise of traits like fair skin and light hair. (iStock)
As humans moved away from hunting and gathering and settled into agricultural societies, their environment and behavior changed radically, triggering an evolutionary “acceleration.”
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While the Harvard study provides the first definitive statistical proof that red hair was actively selected during the rise of farming, the researchers noted that the exact prehistoric benefit still requires more study.
However, scientists have long pointed to vitamin D synthesis as a likely driver for the rise of these light-pigmented traits in northern climates.
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While redheads remain a minority of the global population today, the Harvard study’s analysis suggests that they may not be an evolutionary accident.
While redheads remain a minority of the global population today, the Harvard study’s analysis suggests they may not be an evolutionary accident. (iStock)
Instead, the red hair trait was “boosted” by natural selection as humans adapted to the challenges of a modern world, according to the researchers.
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The researchers urged caution in how these findings are interpreted.
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“What a variant is associated with now is not necessarily why an allele propagated,” the authors noted.
Dr. Megan Jack, a neurosurgeon in Cleveland, often works 60 or 70 hours a week. And she’s completely unavailable when she’s in the operating room. That makes it tough to be a caregiver for her 76-year-old mother, who lives in a separate unit on Dr. Jack’s property, 30 minutes away from the hospital.
To help care for her mother, who has Alzheimer’s disease, Dr. Jack uses an array of high-tech tools, some of which didn’t exist just a few years ago. She manages her mother’s medications with a smart pill box. She changes her television channels with an app, sends appointment reminders through a digital message board — and, with her mother’s blessing, uses cameras for communication and monitoring.
“It’s been invaluable that I can both make sure she’s safe and make sure everything is going well,” Dr. Jack said, “but also give her the independence and the freedom that she still deserves.”
America is aging rapidly. Roughly 11,000 people are turning 65 each day in the United States. And many of them — 75 percent of people over 50, according to AARP’s most recent survey, from 2024 — hope to spend their remaining years in the comfort of their homes, rather than in assisted-living or other care facilities.
One thing that could help fulfill those wishes is the budding field of “age tech,” which encompasses tools that support older adults. Industry experts say that age tech is making homes safer for older adults and is easing the minds of their caregivers, especially those who live far away or work outside the home.
Dr. Jack said that age tech had “really allowed me to integrate caregiving into my life, as opposed to caregiving taking over my life.”
The age tech boom
If older adults don’t have loved ones who are both close by and able to help, they might believe they don’t have a ton of options. They can live independently, or, if they can afford it and qualify medically, they can move to an assisted-living facility or a nursing home, without a lot of choices in between. In-home help can be expensive without Medicaid and can also be difficult to find, given the serious shortage of home care workers.
Age tech can help bridge some important gaps, said Emily Nabors, the associate director of innovation at the National Council on Aging, a nonprofit advocacy group. Already, AARP reports that 25 percent of caregivers are remotely monitoring their loved ones with apps, videos or wearables, nearly double the percentage from five years ago.
“We used to say homes are the health care settings of the future, but they really are health care settings now,” Ms. Nabors said. “Aging in place is very realistic.”
More than 700 companies are in AARP’s AgeTech Collaborative, a group that connects businesses, nonprofits and funders to help get new technologies off the ground. Altogether, the collaborative’s start-ups have raised nearly $1 billion in the past four years.
The products include smart walkers, glasses with lenses that provide real-time captions of conversations for those with hearing issues, and a concierge service that connects older people to drivers and deliveries, even if they don’t have a smartphone.
Ms. Nabors does foresee some affordability and access barriers to age tech, including the lack of high-speed internet in rural areas, but she said one vital resource would be local aging agencies, which can offer advice and, sometimes, free support.
Janet Marasa leaned on the agency near her home in Rockland County, N.Y., to get a free robotic pet for her mother, Carol DeMaio, 80, who has dementia. The pets, manufactured by a company called Joy for All, aim to offer emotional support without the upkeep.
Ms. DeMaio named the robotic dog Sabrina, after a golden retriever who died. The new Sabrina stays at the foot of her bed at night. As soon as Ms. DeMaio stirs awake, the dog reacts. “She said it gives her a reason to get up in the morning,” Ms. Marasa said.
The dog has been a boon to her, too. “It provides comfort and interaction that I can’t provide every second,” said Ms. Marasa, who lives with her mother but works full time for the county government. “It gives her something that she can feel like is totally her own.”
In Broward County, Fla., where the population of residents over 85 is expected to nearly triple over the next few decades, the local agency on aging has used state and federal money and private grants to provide technologies to nearly 4,000 of the county’s seniors at no cost.
Its offerings include a company that uses radar to sense falls and a program that allows seniors to make video calls through their televisions.
“The possibilities are endless,” Charlotte Mather-Taylor, the agency’s chief executive, said. “It’s pretty great to see all the new technology coming out so quickly, and I think that can only benefit our older population and also our caregivers.”
Here comes A.I.
Even technologies not specifically marketed as age tech can help older adults maintain their independence, said Laurie Orlov, founder of the blog Aging and Health Technology Watch. She pointed to video-calling and telehealth platforms; remotely controlled thermostats and lights; and smart speakers, doorbells and watches.
“All technology can be customized to help older adults stay longer in their homes and help their family members feel good about it, or at least tolerate it,” Ms. Orlov said.
That will only become more true with the continued proliferation of artificial intelligence, Ms. Orlov added. Some older adults are already using conversational A.I. to get answers about things like the weather or their medications. (Relying too heavily on A.I. can, however, have negative consequences because chatbots often give flawed medical advice and can lead patients astray.) A.I. can also assist in pattern detection: alerting caregivers to signals that might indicate declines in someone’s cognition or mental health, such as changing their speech pattern or leaving the house less frequently.
One A.I.-powered age tech tool is ElliQ, a tabletop companion robot that looks like a sleek silver desk lamp with a screen. About a year and a half ago, Camille Wolsonovich got one for free, thanks to a local nonprofit, for her 90-year-old father, Bill Castellano. He lives alone in a senior community.
Ms. Wolsonovich, who runs a consulting business, relies on ElliQ to lead her father in exercises and remind him to take his pills and drink water. The robot also asks her father about his sleep and mood via automated check-ins.
“Everything’s just another layer that gives us more confidence, from a caregiving standpoint, that he’s good,” Ms. Wolsonovich said. “I don’t have to necessarily track everything all the time and be overbearing.”
As for Mr. Castellano? He plays trivia digitally and converses daily with ElliQ. The robot, which has a friendly female voice, asks questions, cracks jokes and remembers his likes, dislikes and friends. “She’s great company,” he said. “Everybody around me wants one.”
What about ethical concerns?
Clara Berridge studies the ethics of age tech at the University of Washington.
She has many privacy concerns, namely that most direct-to-consumer products aren’t subject to medical privacy laws, despite being privy to sensitive health information. Though she hopes the federal government will eventually step in to regulate these products, as it has in other countries, the onus remains on the consumer for now.
And even if an age tech product isn’t selling mom’s personal data to the lowest bidder, Dr. Berridge said there’s still the question of whether certain tools are ethical.
“It’s really important for caregivers to recognize that using these new technologies that give them more information about someone can represent greater intrusion into someone’s life,” she said.
What may be well-intentioned monitoring could reveal information that an older adult would rather keep private, such as issues with incontinence, or the comings and goings of a romantic partner.
“It can lead to somebody feeling infantilized,” Dr. Berridge said. “Like there’s not a place to hide within your own home.”
Her research shows that adult children often underestimate how much their parents can understand about technology and how much they want to be involved in tech-related decisions.
She encouraged caregivers to have transparent conversations about privacy implications and to avoid ultimatums or the idea that any decision must be permanent. She said caregivers should put themselves in their parents’ shoes: Is this something they’d want their own children monitoring?
Dr. Berridge is working on an advanced directive for technology, which outlines older people’s wishes for how technology is used in their care. Ultimately, she hopes that questions about age tech will become a standard part of planning for the future.
“If you’re at the start of what, for many people, ends up being a long road of supporting someone potentially through the end of their life,” she said, “seeking to understand each other’s concerns and priorities better is time very well spent.”
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