Go Unlimited with Magzter GOLD

Go Unlimited with Magzter GOLD

Get unlimited access to 9,500+ magazines, newspapers and Premium stories for just

$149.99
 
$74.99/Year

Try GOLD - Free

PEANUT PROOF

Scientific American

|

September 2025

Remarkable new treatments can free millions of kids and adults from the deadly threat of peanut allergy, tackling one of our fastest-growing medical problems

- MARYN MCKENNA

PEANUT PROOF

ANABELLE TERRY, A SLENDER, self-possessed 13-year-old, has heard the peanut butter story her entire life. At two and a half she ate nuts for the first time. Her mother, Victoria, had made a little treat: popcorn drizzled with melted caramel, chocolate and peanut butter. Anabelle gobbled it down. "And afterward, I felt really sick," she says. A few minutes later she vomited on the kitchen floor.

There was more trouble ahead. A visit to an allergist confirmed that Anabelle was severely allergic to the peanut butter in the dessert, as well as to most other nuts. It began a life upheaval familiar to families of kids with allergies: learning to decode labels, to carry an EpiPen, and to interrogate friends and their parents about the ingredients in a birthday cake.

Every once in a while, there would be a slip-up. It might be a snack that someone hadn't scrutinized or a food package that didn't list all potential allergens.

And every time, Anabelle's reactions got worse. Although she was just a schoolkid, she had to stay alert. "Eating lunch, all my friends would have PB&Js. And I'd be like, I'm going to sit a little bit farther away," she recalls. "And going over to friends' houses after school, we always had to make sure: 'Hey, would you mind making a nut-free meal?"" Most of that caution is in Anabelle's past now.

For the vast majority of patients, peanut allergy is an unpredictable, lifelong affliction. But thanks to a clinical trial that Anabelle entered when she was nine, she can now tolerate peanuts and tree nuts well enough to feel safe every day. The drug she received in that trial was approved for treating food allergies by the U.S. Food and Drug Administration last year, making it the second food allergy remedy to earn the agency's blessing since 2020.

MORE STORIES FROM Scientific American

Scientific American

Scientific American

How a Tiny Brain Region Guides Generosity

Whether and how much we help others may be determined by the brain's basolateral amygdala

time to read

6 mins

October 2025

Scientific American

Scientific American

Biological Age vs. Chronological Age

Investigating the science and hype of biological age tests

time to read

6 mins

October 2025

Scientific American

Scientific American

Search Broadly

The way you search the Internet can reinforce your beliefs—without you realizing it

time to read

2 mins

October 2025

Scientific American

Scientific American

Why Knot

Mathematicians unravel a long-standing conjecture about knot theory

time to read

2 mins

October 2025

Scientific American

Scientific American

The Landslide in Your Backyard

As climate change brings more intense rain to the mountains, dangerous debris flows are on the rise

time to read

14 mins

October 2025

Scientific American

Scientific American

Fast Fashion Needs a Green Makeover

A more circular economy in textiles will look good on everyone

time to read

4 mins

October 2025

Scientific American

Scientific American

Neural Stretch

Scientists map a mouse's peripheral nervous system in unprecedented detail

time to read

2 mins

October 2025

Scientific American

Scientific American

A Block-Stacking Problem with a Preposterous Solution

In principle, this impossible math allows for a glue-free bridge of stacked blocks that can stretch across the Grand Canyon- and into infinity

time to read

5 mins

October 2025

Scientific American

Scientific American

Decoding Blood

New biomarkers promise easier and earlier detection of Alzheimer's, but the results aren't always clear

time to read

9 mins

October 2025

Scientific American

Scientific American

Science Makes the U.S. a Great Nation

History tells us what happens when great nations attack science

time to read

4 mins

October 2025

Listen

Translate

Share

-
+

Change font size