Dont see why not but whiteworms are pretty small so cant see them been of much benefit?
small roaches, locusts & crickets are good staple insects
also earthworms, slaters, waxworms/moths & mealworms (more treats imo)
try encourage the greens to, put bits on end of kebab stick or drop into bowl infront of them the movement seems to help encourage them, even add livefood to the salad sometimes gets them interested
all above in proportion to the space between the eyes, hth