The bacterial flora in the stomach and intestines is known as microbiota. These are found throughout the digestive system, from the mouth to the large intestine. Digestive microbiota affect biological mechanisms, which in turn affect our health.
In healthy people, there is a greater variation between different intestinal bacteria strains, while this variation is lower in persons suffering from certain diseases. Research shows that there are differences between the number of different bacteria and dietary intake, as well as with different genetic factors and the number of bacterial strains.