04/04/2025

Microdosing Peanut Butter Could Alleviate Some Peanut Allergies

17:15 minutes

Classic peanut butter swirl top view
Credit: Shutterstock

Over the past two decades, rates of peanut allergies in children have more than tripled. A variety of theories has been proposed to explain this, from a rise in industrialization keeping kids away from the germs that develop the immune system, to the previous pediatric guidelines that urged parents to restrict access to peanuts early in life. Whatever the cause, higher rates of peanut allergies means effective treatments are in higher demand.

New research published in NEJM Evidence shows that a simple treatment could be effective for kids who can tolerate half a peanut or more before an overwhelming reaction: eating a small amount of store-bought peanut butter, gradually increasing the amount over 18 months. In the study, 100% of participating kids increased their tolerance to three tablespoons of peanut butter without an allergic reaction.

Joining Host Flora Lichtman to discuss this study and other food allergy treatments on the horizon is Dr. Scott Sicherer, Director of the Jaffe Food Allergy Institute at Mount Sinai Hospital in New York.


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Segment Guests

Scott Sicherer

Dr. Scott Sicherer is the Director of the Elliot and Roslyn Jaffe Food Allergy Institute at Mount Sinai in New York, New York.

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About Kathleen Davis

Kathleen Davis is a producer and fill-in host at Science Friday, which means she spends her weeks researching, writing, editing, and sometimes talking into a microphone. She’s always eager to talk about freshwater lakes and Coney Island diners.

About Flora Lichtman

Flora Lichtman is a host of Science Friday. In a previous life, she lived on a research ship where apertivi were served on the top deck, hoisted there via pulley by the ship’s chef.

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