Tiny Health's story begins withtwowidely different births.

Cheryl Sew Hoy had two radically different birth experiences between her children. Her first baby presented breech and was born by C-section. Two years later, her youngest was a vaginal birth with the support of a midwife.

Guess which baby battled eczema and food allergies?

Cheryl’s first baby developed mild eczema and had to work through a sesame allergy after starting solids. This wasn’t a coincidence. Her baby had been exposed to a lot of unfriendly bacteria from the c-section...

And the consequences were showing.

After reading hundreds of scientific papers....

Cheryl found ways to restore her first child’s gut microbiome health, hopefully averting chronic conditions. She tried with:

However, back then gut tests were only available for adults. There was nothing tailored to mom and babies needs. So Cheryl was left without any way of measuring how her baby's microbiome was recovering.

Determined to find answers, Cheryl met a microbiologist who opened her eyes to all the ways you can improve your child's health by deeply understanding their microbiome.

How was this not available to parents? To babies struggling with fussines, eczema or asthma? That needed to change.

So, Cheryl put together a team of leading scientists, physicians and microbiologists and after a year of working the problem, Tiny Health was born.

“I took charge of my own and my babies' gut health, because I knew it was fundamental for their lifelong health.”

Cheryl, Founder of Tiny Health

Introducing the first microbiome tests uniquely designed for families

Vaginal test for mom

Keep your vaginal health in check to ensure you pass friendly bacteria to your baby at birth, and lower risk for pregnancy conditions.

Gut test for mom or dad

Discover if you have the microbes essential for your baby’s immune system and if you are able to pass them on.

Gut test for baby

The first colonizer bacteria can tell if baby had the right start. 3m, 6m, 12m are also important biomarkers to track as their gut rapidly evolve.

Our mission:
To improve health outcomes of future generations through evidence-based insights

Built by a team who cares

Who’s on our team: microbiologists, pediatric physicians, science writers, technologists, bioinformatician, data scientist, wellness expert, lactation consultant, registered dietician, pediatric acupuncturist, and more. We have 9 babies and kids, 6 cats and 4 dogs. Collectively, we have read 1,587 scientific papers.

We’d love to hear from you about our current open positions.
View open roles

Developed with experts in early-life microbiome health

Noel Mueller, PhD
Scientific Advisor

Associate Professor of Epidemiology, Johns Hopkins University

Joel Warsh, MD
Medical Advisor

Board-Certified Pediatrician, Creator of Raising Amazing Podcast

Meghan Azad, PhD
Scientific Advisor

Associate Professor of Pediatrics and Child Health at the University of Manitoba; Co-Director, Manitoba Interdisciplinary Lactation Center (MILC); Deputy Director, CHILD Cohort Study

Nicole Calloway Rankins, MD, MPH
Medical Advisor

Medical Advisor; Practicing OB/GYN Hospitalist Physician, Creator and Host of The All About Pregnancy & Birth Podcast

Ruben Mars, PhD
Founding Advisor

Assistant Professor of Medicine, Center for Individualized Medicine Microbiome Program, Mayo Clinic, Rochester, MN

Dr. Kim Green, MD
Medical Advisor

Associate Clinical Professor, UCSF; Pediatrician and former Chief Innovation Officer, Kaiser Permanente

Rodney Dietert, PhD
Scientific Advisor

Professor Emeritus of Microbiology & Immunology, Cornell University

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Taylor K. Soderborg, MD, PhD

Taylor K. Soderborg, MD, PhD. Tiny Health Medical Director

Noel Mueller, PhD
Scientific Advisor

Associate Professor of Epidemiology, Johns Hopkins University

Joel Warsh, MD
Medical Advisor

Board-Certified Pediatrician, Creator of Raising Amazing Podcast

Meghan Azad, PhD
Scientific Advisor

Associate Professor of Pediatrics and Child Health at the University of Manitoba; Co-Director, Manitoba Interdisciplinary Lactation Center (MILC); Deputy Director, CHILD Cohort Study

Nicole Calloway Rankins, MD, MPH
Medical Advisor

Medical Advisor; Practicing OB/GYN Hospitalist Physician, Creator and Host of The All About Pregnancy & Birth Podcast

Ruben Mars, PhD
Founding Advisor

Assistant Professor of Medicine, Center for Individualized Medicine Microbiome Program, Mayo Clinic, Rochester, MN

See all advisors