Dr. Qian Yuan, Harvard Food Allergy Expert, Joins Tiny Health as Medical Advisor

Dr. Qian Yuan, Tiny Health Medical Advisor, wearing a red bow tie and houndstooth blazer.

Summary

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Families navigating food allergies and eczema need science they can trust. Dr. Qian Yuan, a leading pediatric gastroenterologist and food allergy expert, has joined Tiny Health as Medical Advisor, bringing decades of clinical research to strengthen how we support infant gut and immune development. 

Dr. Yuan brings deep expertise in understanding how the gut develops from infancy and how that shapes a child's immune response to food. As the Demarest Lloyd Jr. Endowed Chair in Food Allergies at Massachusetts General Hospital and Associate Professor at Harvard Medical School, Dr. Yuan has dedicated his career to helping families manage atopic conditions and address early feeding challenges, while deepening our understanding of how early gut health shapes immunity.

As Co-Director of the Food Allergy Center at Mass General, he’s a trusted voice in pediatric nutrition and immunology. His leadership is helping shift how doctors approach early intervention through microbiome-informed care that begins from day one.

Dr. Yuan’s work with Tiny Health focuses on advancing pediatric clinical research. He recently helped author our breakthrough clinical study, Infant Restore, which found that early gut health support reduced eczema odds by 83% in C-section-born babies. Following these promising results, he's joining us to lead our next major study launching in 2026. 

A strong advocate for microbiome-based approaches, Dr. Yuan integrates Tiny Health's testing into his own clinical practice at Mass General, bringing shotgun metagenomics insights directly to the families he serves. This partnership strengthens our commitment to giving families science-backed answers they can trust.

"Evidence-based microbiome analyses give us a window into the root causes of many conditions in infants and children, including allergies, eczema, nutrition, and neuro-psychiatric abnormalities, allowing us to intervene earlier and more effectively." —Dr. Qian Yuan

For parents focused on preventing or disrupting the atopic march, managing eczema flare-ups, and introducing foods like peanuts and eggs, Dr. Yuan's expertise deepens the clinical rigor behind Tiny Health’s science-backed approach to early immune health.

Look for updates on our 2026 clinical study and Dr. Yuan's ongoing work with Tiny Health.