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Our story

It started in a clinic

From one pediatric clinic to continuous care for every family.

How we got here

Four chapters, one promise

  1. Watercolor illustration of a friendly pediatrician waving

    The clinic years

    Our CMO treated more than 10,000 children. The same story kept repeating: months of waiting, twenty-minute visits, families alone in between.

  2. We built Pooficient

    One app connecting what a child eats, feels, and passes. Families found it, and kept using it.

    Live on the App Store
  3. 61%

    fewer painful bowel movements

    2x

    care plan adherence

    25%

    fewer clinic visits

    Measured in our clinical cohort.

    Cited 2025Elsevier’s Gastroenterology Clinics of North America, GI clinics review.

    The results

    Families felt the difference. The peer-reviewed literature noticed it.

  4. Watercolor illustration of a parent and child sharing a high five

    Fiber Health today

    A full virtual clinic. Real clinicians, continuous care, designed to be covered by insurance.

    See how it works

The team

Built by clinicians and builders

Eren Yağmurlu, Chief Executive Officer

Eren Yağmurlu

Chief Executive Officer

Guided leading consumer health apps.

Aydın Yağmurlu, MD, Chief Medical Officer

Aydın Yağmurlu, MD

Chief Medical Officer

Professor of pediatric surgery, 10,000+ children treated.

Yağız Efe Mertol, Chief Technology Officer

Yağız Efe Mertol

Chief Technology Officer

Built apps used by 10M+ people.

Bartu Şişman, Founding Engineer

Bartu Şişman

Founding Engineer

AI engineer, computer vision and voice.

John M. Rosen, MD, Clinical Advisor

John M. Rosen, MD

Clinical Advisor

Board-certified pediatric gastroenterologist.

Dr. Rosen cited our work in the peer-reviewed literature before joining as advisor.

Your child’s gut, in good hands

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