You might get some good quality calcium powder on the hind end of the pink, but once your gilas graduate to larger, more developed prey items, they really don't need any supplementation.

I have worked with both gilas and beadeds, and bred gilas four consecutive years in a row back in the late 1980's early 1990's. I have never (to my recollection) used supplements. A diet of healthy rodents is all they need. I also never feed eggs. Although they like them, its really not necessary (though they are good for enticing reluctant feeders to eat).