Medical Discovery News

You Are What You Poop

Medical Discovery News Season 19 Episode 940

940 You Are What You Poop

Welcome to Medical Discovery News.  I’m Dr Norbert Herzog. 

And I’m Dr. David Niesel 

Scientists have long studied waste, not the trash we throw out each week, but the waste that comes from our bodies and the bodies of animals. 

 They’re studying fecal matter to understand better the nutrition we and other animals consume. It could also improve how we control diseases such as diabetes. 

 One interesting fact is that of earth’s two hundred to three hundred thousand edible plants, humans have only consumed about seven thousand. 

 In a typical human, about ten to twenty plant species and four animal species pass through our intestines at any time. 

 Because digestion is an incomplete process, intact pieces of each species’ genome are left and become fecal matter or poop. There’s undigested food, billions of bacteria in our gut that aid digestion, and human cells discarded by our tissues and organs. 

 DNA sequencing shows what and how much was eaten. It’s way more reliable than self-reported accounts since people tend to leave out the poor foods they eat. 

One surprising result was that obese children had a higher diversity of plants in their stools. An explanation is that highly processed foods have more diverse ingredients. For example, they found that a Big Mac, fries, and coffee had nineteen different plant species 

 Doctors gather fecal samples from their patients to diagnose disease, but this could also be a way to evaluate a person’s health. It would reveal their nutritional intake and maybe help control or prevent disease.  

We are Drs. David Niesel and Norbert Herzog, at UTMB and Quinnipiac University, where biomedical discoveries shape the future of medicine.   For much more and our disclaimer go to medicaldiscoverynews.com or subscribe to our podcast. Sign up for expanded print episodes at www.illuminascicom.com

 

People on this episode