Klaus Bønnelykke

Claus Bønnelykke serves as a Clinical Professor in the Department of Clinical Medicine at the University of Copenhagen's Faculty of Health and Medical Sciences, specializing in Paediatrics. His academic work is affiliated with Region Hovedstaden (Region H), as indicated by his institutional email address, and he is based at Blegdamsvej 3 in Copenhagen.

Professor Bønnelykke's research focuses on pediatric immunology, respiratory diseases in children, allergy and atopic diseases, gene-environment interactions, child development and neurodevelopment, microbiome research, and epidemiology of childhood diseases. His work investigates how environmental factors, genetics, and lifestyle interact to influence children's health outcomes from prenatal stages through adolescence.

His recent publications (2025) demonstrate a strong focus on interdisciplinary research connecting environmental exposures, genetic factors, and childhood health outcomes. The research spans multiple high-impact journals including Nature Communications, Nature Metabolism, JAMA Network Open, and Allergy. His work shows particular emphasis on respiratory conditions, allergic diseases, neurodevelopmental outcomes, and the microbiome's role in child health.

Professor Bønnelykke has established significant collaborative networks across multiple countries, as evidenced by the extensive media coverage and social media engagement with his research. His work has been picked up by over 180 news outlets and shared across various social media platforms including X (formerly Twitter), Facebook, Bluesky, and Reddit, indicating substantial impact in both academic and public spheres.

He leads or participates in multiple collaborative research initiatives including the Multidisciplinary Study to Identify the Genetic and Environmental Causes of Asthma in the European Community (GABRIEL) consortium and the Early Genetics and Lifecourse Epidemiology (EAGLE) Consortium. His current research includes the PRE-STORK trial, a randomized controlled trial investigating healthy lifestyle interventions before and during pregnancy to prevent childhood obesity.