Gut loaded means that any feeder insect, crickets, roaches, or worms, should be brought home from the store you buy them in and be fed a good diet, veggies, oatmeal, fish food, dog food, cat food, (at least for roaches and crickets, I'm not sure exactly what is good for worms yet) before you feed them to your lizard. The idea is feeding healthy well fed feeders insects leads to a healthy well fed lizard.