Transplanting gut microbes from healthy donors to peanut-allergic adults helped increase their allergen tolerance:llergic adults helped increase their allergen tolerance, according to a study published in Science Translational Medicine. In a 15-patient trial highlighted by the US National Institutes of Health report, donor microbe capsules enabled six participants to tolerate higher amounts of peanut protein after four months. Responders showed increased regulatory T cells and reduced allergic responses.

According to Qatar News Agency, researchers noted these preliminary Phase 1 findings require larger trials to confirm safety and effectiveness. The study suggests a potential new avenue for addressing peanut allergies through microbiome modification, though further research is necessary to establish broader applications and long-term impacts.