Application of microorganisms in identification and/or distinguishing of different race individuals

The invention provides application of microorganisms in identification and/or distinguishing of different race individuals and application of a product for detecting the abundance of the microorganisms in identification and/or distinguishing of different race individuals. The invention further provides a method for identifying and/or distinguishing different race individuals. The method comprisesthe steps that the relative abundance of the Allisonella bacterial genus in the intestinal tracts and/or excrement of the individuals is detected and compared with a threshold value.