Fighting Allergy with Allergen

Babies who ate peanuts were less likely to develop an allergy to the food by the time they hit kindergarten, according to a new study.

Written byKerry Grens
| 2 min read

Register for free to listen to this article
Listen with Speechify
0:00
2:00
Share

WIKIMEDIA, FREESTOCK.CAInfants at high risk of peanut allergies who were exposed to the food ended up less likely to develop the allergy later in life, according to a study published in the New England Journal of Medicine yesterday (February 23). Although the general practice for more than decade has been for babies to steer clear of peanuts, the results give a swift kick to advice that was falling out of favor.

“This study really proves cause and effect,” Hugh Sampson, a pediatric allergist at the Icahn School of Medicine at Mount Sinai in New York City, told Science. “When someone asks me in my practice, I will encourage them to get peanuts in the diet in the first year of life.”

The study randomly assigned more than 500 babies to either eat at least six grams of peanut protein a week or to abstain from peanuts. All of the babies had eczema or an egg allergy, but did not initially have a reaction to peanuts. At five years of age, nearly 14 percent of the abstinent group had developed a peanut allergy, compared to roughly 2 percent of the peanut-eating kids.

“This is a major study—really ...

Interested in reading more?

Become a Member of

The Scientist Logo
Receive full access to more than 35 years of archives, as well as TS Digest, digital editions of The Scientist, feature stories, and much more!
Already a member? Login Here

Related Topics

Meet the Author

  • kerry grens

    Kerry served as The Scientist’s news director until 2021. Before joining The Scientist in 2013, she was a stringer for Reuters Health, the senior health and science reporter at WHYY in Philadelphia, and the health and science reporter at New Hampshire Public Radio. Kerry got her start in journalism as a AAAS Mass Media fellow at KUNC in Colorado. She has a master’s in biological sciences from Stanford University and a biology degree from Loyola University Chicago.

    View Full Profile
Share
December digest cover image of a wooden sculpture comprised of multiple wooden neurons that form a seahorse.
December 2025, Issue 1

Wooden Neurons: An Artistic Vision of the Brain

A neurobiologist, who loves the morphology of cells, turns these shapes into works of art made from wood.

View this Issue
Stacks of cell culture dishes, plates, and flasks with pink cell culture medium on a white background.

Driving Innovation with Cell Culture Essentials

Merck
Stacks of cell culture dishes, plates, and flasks with pink cell culture medium on a white background.

Driving Innovation with Cell Culture Essentials

MilliporeSigma purple logo
Human iPSC-derived Models for Brain Disease Research

Human iPSC-derived Models for Neurodegenerative Disease Research

Fujifilm
Abstract wireframe sphere with colorful dots and connecting lines representing the complex cellular and molecular interactions within the tumor microenvironment.

Exploring the Inflammatory Tumor Microenvironment 

Cellecta logo

Products

Beckman Logo

Beckman Coulter Life Sciences Introduces the Biomek i3 Benchtop Liquid Handler, a Small but Mighty Addition to its Portfolio of Automated Workstations

brandtech logo

BRANDTECH® Scientific Announces Strategic Partnership with Copia Scientific to Strengthen Sales and Service of the BRAND® Liquid Handling Station (LHS) 

Top Innovations 2026 Contest Image

Enter Our 2026 Top Innovations Contest

Biotium Logo

Biotium Expands Tyramide Signal Amplification Portfolio with Brighter and More Stable Dyes for Enhanced Spatial Imaging