Zophobas make excellent live feeder food for lizards, turtles, frogs, salamanders,birds, larger fish such as oscars, koi etc.
Nutritionally these are pretty close to mealworms in diatary value.
You can also gut load them by adding calcium to thier diet which will in turn be absorbed into the animal you are feeding them to.
If kept in an open container with free raom the superworms will eventually turn into darkling beetles. As a gown adult these will actually canabilize the Zophobas morio larva so be sure to remove them.