Health
10 surprising facts about peanut allergies, according to a pediatric immunologist
More than six million people in the U.S. have an allergy to peanuts, according to Food Allergy Research and Education (FARE).
Nearly 1.6 million of these sufferers are kids and teens.
“The recent news of deaths and peanut allergies reminds us that consumers are choosing avoidance over cutting-edge therapies that might have saved their lives,” said Dr. Rani Maskatia, a pediatric and adult allergist and immunologist in California.
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Maskatia, who is also medical director with Latitude Food Allergy Care, a network of clinics providing testing and treatment for food allergies, shared with Fox News Digital 10 surprising facts about peanut allergies.
1. A peanut allergy results from an immune system reaction
A peanut allergy develops when the immune system reacts to major proteins found in peanuts as if they are harmful invaders, according to Maskatia.
More than six million people in the U.S. have an allergy to peanuts, according to Food Allergy Research and Education (FARE) — and nearly 1.6 million of them are kids and teens. (iStock)
“The immune system fights off the proteins, resulting in a wide range of symptoms, sometimes impacting multiple systems of the body — skin, gastrointestinal, respiratory or cardiovascular,” she said.
2. It’s unclear why peanut allergies are becoming more common
Cases of peanut allergy have steadily increased in recent history, Maskatia said.
“This may result from many variables in our society — from environmental changes to shifts in our diets over the generations and even decades of (now outdated) recommendations to avoid peanut-based foods altogether in very young children,” he said.
3. Peanut allergy reactions are usually the result of accidental ingestion
Despite increased awareness, accidental exposures continue to occur, Maskatia noted.
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“Even if a certain food does not intentionally contain peanuts, cross-contact (i.e., accidental contact with peanuts) can still result in an allergic reaction,” she warned.
4. There are varied symptoms of peanut allergies
An allergic reaction to peanuts can manifest in a wide range of symptoms, from mild discomfort to severe life-threatening anaphylaxis, according to Maskatia.
An allergic reaction to peanuts can manifest in a wide range of symptoms, from mild discomfort to severe life-threatening anaphylaxis. (iStock)
Symptoms can include hives; skin redness or swelling; itching or tingling in the throat or mouth; runny nose; red, watery eyes; swelling of the tongue and/or lips; eye swelling; nasal congestion; stomach cramps and/or abdominal pain; diarrhea; nausea or vomiting; difficulty breathing and/or wheezing.
5. Children and adults with peanut allergies are at risk for anaphylaxis
Peanut allergy is the most common allergy associated with anaphylaxis, which is a severe, potentially life-threatening allergic reaction.
Signs of anaphylaxis can include pale or bluish tint on the skin, throat constriction, shortness of breath and/or wheezing, difficulty breathing, confusion and/or dizziness, and a weak and rapid pulse.
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“Although fatalities are very rare, if anaphylaxis occurs, access to immediate medical treatment is critical,” Maskatia advised.
“Everyone with a doctor-diagnosed peanut allergy should create an emergency anaphylaxis plan to minimize response time, including carrying two epinephrine auto-injectors accessible at all times.”
6. Testing and diagnosis can begin in infancy
Babies as young as four months old can be tested for peanut allergies, Maskatia noted.
“Testing that includes blood work and skin testing can ensure that diagnoses are as accurate as possible,” she told Fox News Digital.
“Testing that includes blood work and skin testing can ensure that diagnoses are as accurate as possible,” an allergist told Fox News Digital. (iStock)
“Blood work may consist of specific IgE tests and component testing, which help distinguish which proteins in the peanut a patient might be most likely to react to.”
7. A peanut allergy diagnosis doesn’t always mean all nuts must be avoided
Peanuts are actually legumes, which means other types of nuts — such as walnuts, almonds, hazelnuts and cashews — are often safe to eat, according to Maskatia.
“However, since it is possible to be allergic to both peanuts and to tree nuts and seeds, a clinical evaluation with an allergist is advised,” she said.
Peanuts are actually legumes, which means other types of nuts — such as walnuts, almonds, hazelnuts and cashews — are often safe to eat, according to an expert. (iStock)
“Once the patient has clarity about which foods are allergies, they should freely eat the foods they are not allergic to, ensuring diversity of diet and reducing the risk of future sensitizations to other foods.”
8. An allergic reaction could be triggered by non-food items
Peanut proteins can also be present in vitamins, medications, skin creams, cosmetics, sunscreen, craft materials, toy stuffing, pet food, bird feed and even ant baits or mousetraps, Maskatia warned.
9. An allergy can be outgrown over time
If you suspect you’ve outgrown a peanut allergy, follow-up testing with an allergist is recommended, Maskatia said.
“If an allergist suspects through blood work and skin tests that you might have outgrown the allergy, an oral food challenge may be recommended,” she said.
Peanut allergy is the most common allergy associated with anaphylaxis, which is a severe, potentially life-threatening allergic reaction. (iStock)
An oral food challenge is a step-by-step process in which the patient — under the supervision of a trained clinician — consumes small amounts of a suspected allergen over a period of three to four hours.
“This is done with the expectation that you’ll be able to consume the peanuts safely,” Maskatia said.
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“Conversely, because peanut allergies can have severe or life-threatening reactions, failing to obtain a clinical diagnosis when there is a suspected history of reaction can present significant health and safety risks,” she warned.
10. Peanut allergies can be treated
Maskatia recommends a treatment called oral immunotherapy (OIT), which she said is approximately 85% effective for single or multiple food allergies and is safe for all ages.
“It is expected that in the next decade, there will be more treatment options for people with peanut allergies.”
“Over time, the OIT process continually exposes the patient to increasing amounts of an allergen,” she said.
“The body is gradually desensitized and learns to adapt to the allergen. This decreases dietary restrictions and increases protection against severe or life-threatening reactions due to accidental exposure.”
Palforzia is an FDA-approved drug for peanut allergy treatment, Maskatia pointed out, and the FDA also recently approved Xolair (omalizumab) for treating all food allergies, including peanut allergy.
“It is expected that in the next decade, there will be more treatment options for people with peanut allergies,” she said.
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The key to feeling better in a fast, overstimulated world might be surprisingly simple: Live a little more like your grandparents.
A growing social media trend, dubbed “nonnamaxxing,” draws inspiration from the slower, more intentional rhythms associated with an Italian grandmother.
The lifestyle is often linked to activities like preparing home-cooked meals, spending time outdoors and making meaningful connections.
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“Nonnamaxxing is a 2026 trend that embraces the slower, more intentional lifestyle of an Italian grandmother (a Nonna). Think cooking from scratch, long family meals, daily walks, gardening and less screen time,” Erin Palinski-Wade, a New Jersey-based registered dietitian, told Fox News Digital.
Nonnamaxxing, derived from the name for an Italian grandmother, is a trend that incorporates lifestyle habits hundreds of years in the making. (iStock)
Stepping away from screens and toward real-world interaction can have measurable benefits, according to California-based psychotherapist Laurie Singer.
“We know that interacting with others in person, rather than spending time on screens, significantly improves mental health,” she told Fox News Digital, adding that social media often fuels comparison and lowers self-esteem.
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Living more like previous generations isn’t purely driven by nostalgia. Cooking meals from scratch, for example, has been linked to better nutrition and more mindful eating patterns.
Adopting traditional mealtime habits can improve diet quality and support both physical and mental health, especially when meals are shared regularly with others, Palinski-Wade noted.
One longevity expert stresses that staying healthy isn’t just about food — it’s also about joy and community. (iStock)
There’s also a psychological benefit to slowing down and focusing on one task at a time. Anxiety often stems from unfinished or avoided tasks, Singer noted, and engaging in hands-on activities can counteract that.
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“Nonnamaxxing encourages us to be present around a task, like gardening, baking or knitting, or just taking a mindful walk, that delivers something ‘real,’” she said.
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Palinski-Wade cautions against turning the trend into another source of pressure, noting that a traditional “nonna” lifestyle often assumes a different pace of life.
The key, she said, is adapting the mindset, not replicating it perfectly.
Nonnamaxxing, derived from the name for an Italian grandmother, is a trend that incorporates lifestyle habits hundreds of years in the making. (iStock)
The goal is to reintroduce small, intentional moments that make you feel better.
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That might mean prioritizing a few shared meals each week, taking a walk without your phone or setting aside time for a simple hobby, the expert recommended.
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Singer added, “Having a positive place to escape to, through whatever activities speak to us and make us happy, isn’t generational – it’s human.”
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Feeling lonely may take a toll on older adults’ memory — but it may not speed up cognitive decline, according to a new study.
Researchers from Colombia, Spain and Sweden analyzed data from more than 10,000 adults ages 65 to 94 across 12 European countries and found those who reported higher levels of loneliness did worse on memory tests at the start of the study, according to research published this month in the journal Aging & Mental Health.
Over a seven-year period, however, memory decline occurred at a similar rate regardless of how lonely participants felt.
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“The finding that loneliness significantly impacted memory, but not the speed of decline in memory over time was a surprising outcome,” lead author Dr. Luis Carlos Venegas-Sanabria of the School of Medicine and Health Sciences at the Universidad del Rosario said in a statement.
Loneliness may be linked to memory performance in older adults, a new study suggests. (iStock)
“It suggests that loneliness may play a more prominent role in the initial state of memory than in its progressive decline,” Venegas-Sanabria said, adding that the findings highlight the importance of addressing loneliness as a factor in cognitive performance.
The findings add to debate about whether loneliness contributes to dementia risk. While loneliness and social isolation are often considered risk factors for cognitive decline, research results have been mixed.
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The study looked at data from the long-running Survey of Health, Ageing and Retirement in Europe (SHARE), which tracked 10,217 older adults between 2012 and 2019. Participants were asked to recall words immediately and after a delay to measure memory performance.
Social isolation and loneliness could play a surprising role in cognitive health among seniors. (iStock)
Loneliness was assessed using three questions about how often participants felt isolated, left out or lacking companionship.
About 8% of participants reported high levels of loneliness at the outset. That group tended to be older, more likely to be female and more likely to have conditions such as depression.
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Researchers found that those with higher loneliness had lower scores on both immediate and delayed memory tests at baseline. Still, all groups — regardless of loneliness level — experienced similar declines in memory over time.
The results suggest loneliness may not directly accelerate the progression of memory loss, though it remains linked to poorer cognitive performance overall.
Researchers look at a brain scan at the National Institutes of Health in Bethesda, Maryland. (Saul Loeb/AFP/Getty Images)
Experts warn, however, that the findings should not be interpreted to mean loneliness is harmless.
“The finding that lonely older adults start with worse memory but don’t decline faster is actually the most interesting part of the paper, and I think it’s easy to misread,” said Jordan Weiss, Ph.D., a scientific advisor and aging expert at Assisted Living Magazine and a professor at NYU Grossman School of Medicine.
“It likely means loneliness does its damage earlier in life, well before people show up in a study like this at 65-plus,” Weiss told Fox News Digital.
By older age, long-term social patterns may already be established, making it harder to detect when the effects of loneliness first took hold, an aging expert says. (iStock)
He suggested that by older age, long-term social patterns may already be established, making it harder to detect when the effects of loneliness first took hold.
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“By the time you’re measuring someone in their late 60s, decades of social connection patterns are already baked in,” he said.
Weiss, who was not involved in the research, added that loneliness may coincide with other health conditions, and noted that participants who felt more isolated also had higher rates of depression, high-blood pressure and diabetes. The link, he said, may reflect a cluster of health risks rather than a direct cause.
“While they can go hand-in-hand, it’s not clear that loneliness contributes to dementia,” a psychotherapist says. (iStock)
Amy Morin, a Florida-based psychotherapist and author, said the findings reflect a broader pattern in research on loneliness and brain health, and that the relationship may be more complex than it appears.
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“The evidence shows there’s a link between loneliness and cognitive decline but there’s no direct evidence of a cause and effect relationship,” she said. “So while they can go hand-in-hand, it’s not clear that loneliness contributes to dementia.”
Morin added that loneliness, which can fluctuate, may not be the root of the problem, but rather a symptom of other underlying mental or physical health issues.
Researchers suggested screening for loneliness be incorporated into routine cognitive assessments as one way to support healthy aging. (iStock)
She said staying socially and mentally engaged is crucial for overall brain health.
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“It’s important to be proactive about social activities,” Morin said. “Joining a book club, having coffee with a friend, or attending faith-based services can be a powerful way to maintain connections in older age.”
The researchers also suggested screening for loneliness be incorporated into routine cognitive assessments as one way to support healthy aging.
Fox News Digital reached out to the researchers for comment.
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