  The contributions of supersymmetric particles in the isospin symmetry
violation in B -> K* gamma decay mode are investigated. The model parameters
are adopted from minimal Supergravity with minimal flavor violation. A complete
scan of the mSUGRA parameter space has been performed, using the next to
leading supersymmetric contributions to the relevant Wilson coefficients. The
results are compared to recent experimental data in order to obtain constraints
on the parameter space. We point out that isospin asymmetry can prove to be an
interesting observable and imposes severe restrictions on the allowed parameter
space, in particular for large values of tan(beta). The constraints obtained
with isospin asymmetry also appear as more restricting than the ones from the
branching ratio of B -> X_s gamma.
