logo
episode-header-image
Jun 2019
2h 25m

You Are A Superorganism: Ara Katz & Raja...

Rich Roll
About this episode



“We are, by definition, an ecosystem. The microbiome reveals a more connected biology, radically transforming our approach to medicine, hygiene, diet, and living.”

Ara Katz & Raja Dhir



Our bodies are comprised of about ten trillion cells. But our microbiome — all the bacteria, viruses, and fungi that live in or on our bodies – outnumber human cells by a factor of 10.

Indeed, we are far more microorganism than human.

Moreover, rapidly developing science reveals the vast extent to which the nature of our personal microbiome drives not only our propensity for disease and digestive health, but also, quite surprisingly, can dictate our mental disposition, cognitive function, and even our specific food cravings.

Today we take a magnifying glass to the mind-blowing netherworld of microbiota to illuminate their implications not just on human health, but the well-being of planet Earth at large.

Our stewards for this fantastic voyage are Ara Katz and Raja Dhir, the co-founders of Seed, a venture backed microbiome company at the pioneering edge of bacteria science.

Ara is a serial entrepreneur and fellow at the MIT Media Lab’s Center for Future Storytelling and CCA’s DesignMBA program. She was named one of the “50 Most Influential Women in America” by Marie Claire, listed on Business Insider’s “Silicon Alley Top 100” and “36 Rockstar Women in NYC Tech”, and was recently included in Create + Cultivate’s 100 List for STEM.


One of the most knowledgeable people I have ever met when it comes to our rapidly evolving understanding of the microbiome, Raja is a life sciences entrepreneur and a member of the Microbiome Think Tank at Mass General Hospital. He sits on the editorial board for the scientific journal Microbiome as well as the advisory committee for the International Scientific Association for Probiotics and Prebiotics. In addition, he is a director and co-chair of the scientific advisory board for Micropia, a $20MM microbial ecology and education platform as well as the world’s first museum dedicated to microbes.


Today we cover it all.

First, we define the microbiome. We discuss the difference between prebiotics and probiotics. And to cut through the consumer confusion fomented by gut health commodification, we separate fact from fiction by examining the difference between an effective priobiotic and the countless food and supplement products simply marketed as such.

Most importantly, we explore what the latest science tells us about the power of microbes to heal our bodies, positively impact childhood development, reinvigorate the quality of our soil and improve the overall ecology of Planet Earth — including some amazing work Ara & Raja are doing with bee populations.

Seed Offer: As a simple thanks for listening, Ara & Raja have a gift for you. Go to: seed.com/richroll to learn more.

Disclosure: In my opinion, Seed's Daily Synbiotic it is the highest quality probiotic I have tested (which is one of the reasons I wanted to have them on the show). Rigorously evidence-based, I’ve been using this product for the last several months to great effect. However, I have zero financial involvement with the company. Seed is not a show sponsor. Ara & Raja did not pay me to appear on the podcast. (I have never accepted money for a guest to appear on the show and never will). Nor am I an affiliate of Seed. In other words, I get a big zero from you using the above-mentioned discount code other than the satisfaction of sharing a product I myself enjoy.

The work Ara & Raja are doing at Seed is equal parts ...



See acast.com/privacy for privacy and opt-out information.

Up next
May 2022
Dr. Will Bulsiewicz On All Things Microbiome: Heal Your Gut, Sidestep Disease & Thrive
One of the most popular guests in the history of this podcast, Dr. Will Bulsiewicz ‘Dr. B' joined me back on episode #538 for a deep dive on the gut and honing our immune systems. Today we dive even deeper with a comprehensive investigation of the microbiome, why it’s important, ... Show More
3h 3m
May 2022
Roll On: Kristian Blummenfelt, The Ministry of Truth, & Sustainable Self-Growth
Welcome to another edition of ‘Roll On’, wherein Rich Roll and journalist & author Adam Skolnick riff on matters of interest across sports, culture, entertainment, and self-betterment.  Specific topics discussed in today’s episode include:Adam's latest NYT piece A Free Diver’s Tr ... Show More
1h 46m
May 2022
Gemma Newman, MD On Optimizing Hormone Health
Today’s episode explores nutrition, lifestyle  and overall well-being with a particular focus on hormone health – particularly (but not exclusively) women’s hormone health, aging, and reproductive care – with Gemma Newman., MD. A Senior Partner at a family medicine practice in th ... Show More
2h 8m
Recommended Episodes
Jan 2024
How to Select a Probiotic and the Future of the Microbiome with Raja Dhir
View the Show Notes For This Episode Get Free Weekly Health Tips from Dr. Hyman Sign Up for Dr. Hyman’s Weekly Longevity Journal Get Ad-free Episodes & Dr. Hyman+ Audio Exclusives Raja Dhir is co-founder and co-CEO of Seed Health, a microbiome science company pioneering innovatio ... Show More
1h 22m
Oct 2021
Relationship Goals: Your Gut Microbiome and Immune Function – Kiran Krishnan, Ph.D., with Dave Asprey : 864
WE APPRECIATE OUR PARTNERS. CHECK THEM OUT!Light Therapy: https://joovv.com/dave, use code DAVEOzone for Healing, Cognition & Performance: http://www.drsozone.com/asprey. Use code UPGRADED10 to save 10% on Dave’s Bulletproof BundleCustomized Nootropic Stacks: https://nootopia.com ... Show More
1h 32m
Mar 2023
Our Microbes and Our Health
We are a teeming mass of interconnected microbes and the impact of this microscopic universe on our health, our minds, even our moods, is profound.Made in collaboration with Wellcome Collection, Claudia Hammond and an expert panel explore one of the fastest moving areas of scienc ... Show More
49m 28s
Oct 2023
Gut Health - Alanna Collen - Microbiome
We are thrilled to present a captivating conversation with renowned author Alanna Collen, diving deep into the groundbreaking insights from her best-selling book, "10% Human: How Your Body's Microbes Hold the Key to Health and Happiness." Discover how our bodies are teeming with ... Show More
49m 39s
Mar 2022
Dr. Justin Sonnenburg: How to Build, Maintain & Repair Gut Health
My guest this episode is Dr. Justin Sonnenburg, Professor of Microbiology & Immunology at Stanford University. Dr. Sonnenburg’s research focuses on how microbes in our gut impact our mental and physical health and how diet and your environment shape your gut microbiome. We discus ... Show More
2h 10m
Feb 2022
How to Enhance Your Gut Microbiome for Brain & Overall Health
In this episode, I discuss the profound effect the gut has on the nervous system. I cover the structure and function of the gut-brain axis and the role of the gut microbiome in the brain and overall health. I describe how the gut controls hunger or satiety by affecting neurons in ... Show More
1h 49m
May 2024
600: Microbiologist Dispels the Myths About Gut Health & the Microbiome | Kiran Krishnan
Kiran Krishnan is a research microbiologist whose focus is the human microbiome and  wellness. His particular expertise is in the newest frontier in microbiology, gut commensal spore bacteria. Show Notes: https://ultimatehealthpodcast.com/600 
1h 52m
Apr 2023
What's living inside my gut?
Inside our gut lives an entire ecosystem of bacteria and microbes, called the microbiome. In fact, the human body contains trillions of microorganisms, which outnumber our cells by ten to one. This means that technically we are more microbe than human. But not only do these micro ... Show More
32m 47s
Dec 2023
#283 ‒ Gut health & the microbiome: improving and maintaining the microbiome, probiotics, prebiotics, innovative treatments, and more | Colleen Cutcliffe, Ph.D.
View the Show Notes Page for This Episode Become a Member to Receive Exclusive Content Sign Up to Receive Peter’s Weekly Newsletter Colleen Cutcliffe is an expert in molecular biology and co-founder of Pendulum Therapeutics, a company working to develop treatments for a variety o ... Show More
2h 32m