In this work some results for light mesons couplings to constituent quarks obtained in a one loop calculation are compared among each other in the limit of large quark effective mass. These coupling constants are extracted from momentum dependent form factors obtained in a dynamical approach from an important term of the QCD quark-effective action. For this, exact and approximated ratios of the different light meson-constituent quark coupling constants
are provided. The comparison is also done for the different light mesons and constituent quark averaged quadratic radii.