  We present a Krylov-Safonov theory approach for the H\"older regularity of
viscosity solutions to non-variational porous media type equations. We explore
the peculiarity of this type of problem: either the equation falls in a
uniformly elliptic regime or the eikonal mechanism takes care of the
regularity. Our techniques are based on sliding paraboloids resulting in an
ABP-type measure estimate. By combining such estimates, a diminishing of
oscillation property is available, resulting in a regularity control in
H\"older spaces.
