Researchers recruited 10 young adults with severe peanut allergies who reacted to mere traces of peanuts and had them swallow frozen “poop pills” containing feces – including strains of helpful bacteria – from donors with healthy gut microbiomes. Three months later, three participants could tolerate eating multiple peanuts, researchers reported in Science Translational Medicine.
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Adjusting gut bacteria may help with peanut allergies
August 10, 2026Researchers recruited 10 young adults with severe peanut allergies who reacted to mere traces of peanuts and had them swallow frozen “poop pills” containing feces – including strains of helpful bacteria – from donors with healthy gut microbiomes. Three months later, three participants could tolerate eating multiple peanuts, researchers reported in Science Translational Medicine.