Grand Unification and the Principle of Minimal Flavor Violation
  Minimal Flavor Violation is an attractive approach to suppress unacceptably large flavor changing neutral currents from beyond the standard model physics at the TeV scale. It can be used in theories with low energy supersymmetry, multi Higgs doublet theories and other extensions of the minimal standard model. We show how minimal flavor violation can be implemented in Grand Unified theories. 
Benjamin Grinstein, Vincenzo Cirigliano, Gino Isidori and Mark B. Wise