Tiny Health is the leading at-home microbiome health platform for every stage of life.
We started with infants because the first 1,000 days are a critical window for lifelong health. Today, we serve everyone: from babies to parents, to adults focused on prevention, chronic conditions, and longevity.
“Tiny” doesn’t mean tiny humans — it means the tiny, invisible microbes in your gut and vaginal microbiome that shape your health at every age.
Tiny Health's story begins withtwowildly 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 children’s gut health because I knew the microbiome was foundational for lifelong health. What started as a mission for my family has grown into a platform helping almost a hundred thousand families and adults take control of their health.”
Introducing the first microbiome tests uniquely designed for families
Baby Gut Test
Identify gaps in early microbiome development and immune training
Child Gut Test (3y–18y)
Track microbiome maturity, diversity and resilience
Adult Gut Test (18+)
Manage chronic conditions, optimize performance, and support longevity goals
Vaginal Health Test
Insights into fertility, pregnancy, menopause, and UTI/yeast imbalance
83% lower odds of eczema risk following Tiny Health intervention
Our groundbreaking study shows babies given personalized microbiome support had 83% lower odds of eczema risk and improved gut health. Published in Pediatric Allergy and Immunology.
Our mission:
To improve health outcomes of future generations through evidence-based insights
“Tiny Health is THE microbiome test that all families should do. Knowledge is Power. And no matter where you are on your health journey, it’s never too late to get your gut microbiome in order!”
Dr. Elisa Song
Stanford-, NYU-, UCSF-trained integrative pediatrician and pediatric functional medicine expert
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 28 babies and kids, 14 cats and 25 dogs, 6 chickens, 208 plants, 1 dragon and 1 hamster. Collectively, we have read 1,587 scientific papers.
Developed with leading scientists, clinicians, and microbiome researchers
Our test is clinically validated for infants, with reference ranges tailored to developing guts, and equally powerful for adults looking to optimize healthspan.
Integrative Pediatrician and Pediatric Functional Medicine Expert
Founder, Healthy Kids Happy Kids
Executive director, G. Oppenheimer Center for Neurobiology of Stress and Resilience, UCLA; Author of The Mind-Gut Connection
Demarest Lloyd Jr Endowed Chair in Food Allergies; Senior Pediatrician, Pediatric Gastroenterology and Nutrition, Co-Director of Food Allergy Center, Massachusetts General Hospital; Associate Professor in Pediatrics, Harvard Medical School
Ruben Mars is an Assistant Professor of Medicine at Mayo Clinic in Rochester, Minnesota.
Associate Professor of Epidemiology, Johns Hopkins University
Associate Professor of Pediatrics and Child Health at the University of Manitoba; Co-Director, Manitoba Interdisciplinary Lactation Center (MILC); Deputy Director, CHILD Cohort Study
