Empowering individuals to live their healthiest lives by unlocking their unique biology.

About Us

At DayTwo we are utilizing the possibilities of the gut microbiome to unlock the power within each individual. By harnessing this biological intelligence, we can provide people with actionable insights into chronic disease care.

Our Story

DayTwo is a microbiome-based precision health company committed to creating individualized solutions for the epidemic of chronic conditions, starting with diabetes, prediabetes, and clinical obesity. Using the highest resolution microbiome analysis available and a unique artificial intelligence-based algorithm, DayTwo can accurately predict blood sugar response to foods or food combinations– before people even take a bite. Our clinically proven approach is based on our proprietary microbiome dataset. With over 85,000 samples, it is one of the largest and richest in the world. But how did we get here?

In 2015, founding scientists Eran Elinav and Eran Segal of the Weizmann Institute were concerned by the epidemic of metabolic diseases (like type 2 diabetes) sweeping the globe. Determined to get to the root of the issue, they set out to learn which diet was best for humans. They undertook the largest clinical trial study of its kind, exploring which factors (including gut bacteria)  impacted people’s blood sugar responses to food. What they discovered next has changed the lives of thousands. First, each person’s gut microbiome is as unique as their fingerprint, and this plays a key role in mediating blood sugar response. Second...

Take a deeper dive...

2002

Scientists Eran Segal and Eran Elinav became obsessed with finding out which diet would help slow the epidemic of metabolic disease.

more

2002

Scientists Eran Segal and Eran Elinav became obsessed with finding out which diet would help slow the epidemic of metabolic disease.

more

2002

Scientists Eran Segal and Eran Elinav became obsessed with finding out which diet would help slow the epidemic of metabolic disease.

more

2002

Scientists Eran Segal and Eran Elinav became obsessed with finding out which diet would help slow the epidemic of metabolic disease.

more

2002

Scientists Eran Segal and Eran Elinav became obsessed with finding out which diet would help slow the epidemic of metabolic disease.

more

2002

Scientists Eran Segal and Eran Elinav became obsessed with finding out which diet would help slow the epidemic of metabolic disease.

more

DayTwo Team

Aamir Rehman

CEO

Aamir Rehman

CEO

Aamir has over 23 years of healthcare industry experience as a physician executive. He has served in senior management and executive roles directly for major stakeholders in almost every vertical of the healthcare industry including payers, providers and employers. He has also worked for pharmaceuticals and PBM clients in his role as a consultant. Starting his consulting career at Oliver Wyman, he served as a clinical SME for healthcare clients as well as an analyst on business design for clients outside of healthcare. During his tenure at the Advisory Board Company, he was a Partner/ Principal at the firm and served in a number of roles, including as the first head of the Physician Leadership Academy and leading the H-Works consulting division. Aamir also has hands on corporate experience, having worked as Executive Vice-President and Chief Strategy Officer of Saint Peter’s Healthcare System and then as Vice-President of Healthcare Delivery Transformation and Chief Clinical Integration Officer at VHA SE (now Vizient). Aamir’s payer experience includes working for Fortune 50 companies and unions (through start-up Renaissance Health), serving as a Partner and Chief of Clinical Services for North America for Mercer – where his responsibilities included advising large employer clients on their clinical and digital health strategy – and as SVP of Clinical Innovation at Consortium Health Plans (a Blue Cross Blue Shield company focused on National Accounts).

Ashley Burgio

Chief Operating Officer

Ashley Burgio

Chief Operating Officer

Prior to this role, Ashley was Solution Director and Strategy Lead for Leidos Health, where she identified and matured innovative concepts and technologies to drive growth. She’s held leadership roles within various health systems, such as Baylor College of Medicine, Universal Health Services, and Jefferson Health.

Udi Zwilinski

VP R&D

Udi Zwilinski

VP R&D

With a career spanning more than 17 years in the technology sector, Udi has held a wide range of roles, from hands-on development responsibilities to pivotal leadership positions.

Udi previously served as the R&D Director at Questar (formerly Traffilog) and currently serves as VP of R&D at DayTwo.

Directors

CEO

Dave Henderson

CEO

Dave Henderson

CEO

Dave Henderson

CEO

Dave Henderson

CEO

Dave Henderson

CEO

Dave Henderson

CEO

Dave Henderson

CEO

Scientific

CEO

Dave Henderson

CEO

Dave Henderson

CEO

Dave Henderson

CEO

Dave Henderson

CEO

Dave Henderson

CEO

Dave Henderson

CEO

Dave Henderson

CEO

Clinical

CEO

Dave Henderson

CEO

Dave Henderson

CEO

Dave Henderson

CEO

Dave Henderson

CEO

Dave Henderson

CEO

Dave Henderson

CEO

Dave Henderson

CEO

Life at DayTwo

We are a team of passionate and ambitious innovators that span the globe with a shared vision of improving chronic disease care through microbiome science, AI, and dedicated support . We are a science-first, outcomes-based company.

Value-based work leads to value-based care.

Lead With Science

Being clinically accurate is vital to the health of our members and trust of our clients.
We think like scientists by employing rigor to achieve excellence  while staying open to a horizon of possibilities.

Empower Individuals

We empower people to be the hero in their own story by equipping them with unique biological insights and supporting their long term growth.
We empower each other with the right tools and environment to do our best work. We show gratitude for each other's contributions!

Be Proactive, Not Reactive

We provide proactive solutions, whether predicting individual blood sugar response or developing the next application for our science.
With an eye to the future, we strive to stay one step ahead, driven by the knowledge that our work can change people’s lives.

Build With Empathy

We put humanity back in healthcare, using empathy to build trust and make health goals feel approachable and achievable.
Through honest and empathetic communication, we build trust and help each other thrive.

Learn About Careers

Join our team

We're always looking for passionate and talented individuals who are looking for a mission driven company.