Gut loading crickets for reptiles?

well i have an eye lash cresded geco named dingodile and the only thing you cando with a lizerd or turtle is calsim about 5 crikets set them in and hope he eats it and like my lizerd they may eat baby food mine eats only cricets and apercots and mixed frute. dont worry about them other powders just the calsim make sure the calsim powders in all the food and gut stufed means like fat live cricets dont feed it dead bugs good luck