Antibiotics have faced growing scrutiny in recent years. Overprescribed, they strain healthcare systems and fail against viral infections. More critically, they drive bacterial resistance. A study in the journal Allergy, Asthma & Clinical Immunology highlights another concern: in children, antibiotics taken during the first 12 months of life may elevate food allergy risk by disrupting gut microbiota.
Building on mouse studies showing early antibiotic use destroys protective gut bacteria and promotes allergies, researchers at the University of South Carolina analyzed 7,500 children—1,500 with food allergies and 6,000 healthy. They found children exposed to antibiotics in infancy were 1.2 times more likely to develop food allergies. The risk escalates with exposure: 1.3 times for 3 doses, 1.4 times for 4 doses, and 1.6 times for 5 or more. Certain antibiotics amplify this—cephalosporins and sulfonamides more so than penicillins or macrolides.
This evidence reinforces that antibiotics aren't always the answer. Next time, consider alternatives carefully.
