Will it alter beneficial gut microbial flora in human and animal?

The assessment for the effect of this GE mustard on microbial population has revealed no adverse effect on soil microorganisms. Also, the three introduced proteins have been found to be easily digested by the simulated gastric fluid. Therefore, based on the history of safe use of these proteins in other countries, it can be concluded that this GE mustard would not alter gut microbial flora in human and animals.