New research suggests that bacteria living in the mouth and gut microbiome may help explain why people with similar peanut-specific antibodies can experience very different allergic reactions to peanuts. Scientists found that certain microbes are able to break down components of peanut allergens, influencing how the immune system reacts and potentially altering the severity of symptoms such as swelling, breathing difficulty or anaphylaxis. The study highlights how interactions between diet, microbes and immune pathways may shape allergy responses, offering promising insights for future strategies that could predict risk or even reduce severe food-allergy reactions through microbiome-targeted therapies.
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