A few takeaways ...

+ ... "the number of different kinds of plants people eat seems to have a very big impact on the microbiome," he said. "That seems to have a much bigger impact than whether you also eat meat occasionally or even frequently."

+ One thing researchers do know is that modernization has drastically changed the state of our microbiome through antibiotics, chemicals and diets.

+ Some scientists theorize that children born via C-section may miss out on important microbes that shape their immune systems and in turn their lifelong health. Chronic illnesses like allergies, asthma, Celiac disease and type 1 diabetes are thought to be a result of lost microbes.