02 May 2016 --- The Flemish Gut Flora Project, one of the largest population-wide studies on gut flora variation among healthy volunteers, has presented its first major results. Through the analysis of more than 1,000 human stool samples, a team of researchers led by Professor Jeroen Raes of VIB-Flanders Interuniversity Institute for Biotechnology (VIB/VUB/KU Leuven) has identified 69 factors that are linked to gut flora composition.