Euproctus platycephalus is among the few urodeles with forced insemination, a behavior usually invoked to explain another peculiarity of this species: males are larger than females, and they have larger heads and longer hind limbs. We examined the diet in a population of E. platycephalus to evaluate if head size dimorphism is associated with trophic divergence between sexes. We analyzed the contents of the stomach of newts from one population in central Sardinia, taking into account their sex, age, and biometric features. Our data indicated that the newts were generalist benthic foragers, and that diets of males and females were similar. Head size dimorphism likely is influenced only by sexual selection.