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Breath Test Reveals Gut Health Insights for Kids

1/23/2026

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Summary

Story summary

Researchers at Washington University School of Medicine and Children’s Hospital of Philadelphia developed a breath-based method to assess gut microbiome health by analyzing volatile organic compounds (VOCs) in exhaled breath.
The study found that VOCs in exhaled breath indicate specific gut bacteria, offering a non-invasive approach for diagnostics of asthma and infant infections.
The researchers confirmed breath reflects gut microbiome composition by analyzing breath and stool samples from children.

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Story summary

Researchers at Washington University School of Medicine and Children’s Hospital of Philadelphia developed a breath-based method to assess gut microbiome health by analyzing volatile organic compounds (VOCs) in exhaled breath.
The study found that VOCs in exhaled breath indicate specific gut bacteria, offering a non-invasive approach for diagnostics of asthma and infant infections.
The researchers confirmed breath reflects gut microbiome composition by analyzing breath and stool samples from children.