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BGSU faculty and students studying children's gut health and its effects on food allergies

Mar 26, 2025

A researcher at Bowling Green State University is exploring the connection between gut health and the development of food allergies in children collaborating with ProMedica Physicians Allergy and Immunology clinic in Perrysburg.

Dr. Wan Shen an assistant professor of food and nutrition aims to shift perspectives on food allergies through this study supported by a grant from the Academy of Nutrition and Dietetics the world's largest organization for nutrition and dietetics professionals.

Food allergies are often seen as beyond one's control, leaving those affected feeling powerless after diagnosis Shen said. However growing evidence suggests that the gut microbiome may influence a person's susceptibility to food allergies.

With food allergies affecting one in 13 children including those to milk eggs and peanuts Dr. Wan Shen has focused her research on finding ways to provide relief for children and their families.

In partnership with the ProMedica Allergy and Immunology clinic Shen and BGSU students are studying children from birth to age six.

We are working with parents to complete 24-hour dietary recalls to track food and beverage consumption Shen said. Additionally we are conducting tests to analyze the child's gut health.

As children grow their gut microbiome diversifies with different microbial species Shen explained. We've observed that diet influences the gut microbiome suggesting that dietary interventions could help modify gut bacteria and potentially reduce food allergies.

Shen highlighted the impact of ultra-processed foods which can trigger gut inflammation potentially disrupting the existing microbiome and altering bacterial composition.

Currently studying over 30 children Shen aims to expand the sample size to more than 80 for more robust data. To support the growing research she relies on the assistance of BGSU undergraduate and graduate students.

This is a valuable opportunity for students to gain research experience while developing problem-solving and communication skills Shen said. They engage with parents answer questions and conduct dietary recall interviews preparing for their future careers.

BGSU senior Ashley Kidd passionate about pediatric nutrition and food allergies joined the research team and quickly realized the issue's complexity. Seeing firsthand how food allergies affect families has deepened my commitment to this field Kidd said.

As the study grows Shen aims to provide parents with valuable insights and education on food allergies. Understanding the link between gut bacteria and allergens could transform how families manage food allergies she said.

Source: https://www.bgsu.edu/news/2025/03/bgsu-faculty-and-students-studying-childrens-gut-health-and-its-effects-on-food-allergies.html


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