"You are what you eat" is familiar enough, but how deep do the implications go?

The human digestive system, a hotbed of living bacteria, comes in three variations just as distinct as variations in blood type.

"The three gut types can explain why the uptake of medicines and nutrients varies from person to person," says bioinformatician Jeroen Raes of the VIB and Vrije Universiteit Brussel, one of the two lead researchers in the study.

UT professor finds concentrations of viruses and bacteria linked to human feces in community water sources in East Tennessee.

The herbal supplement echinacea, often used to prevent the common cold, may also be connected to an increase in bacteria in the gastrointestinal tract, according to a recently published study by a University of Arkansas professor and graduate student. Jerald C.