i have never heard of anyone having that issue with mealworms. i never have. i have fed them to bearded dragons, anoles, turtles when i kept more reptiles a few years ago. like you guys said, not as a staple diet only once in a while. i thought it would be kind of ridiculous for a mealworm to be able to survive in the stomach acids of any reptile long enough to be able to do this. but i guess you never really know. im sure someone, somewhere experienced it, thats why its such a thought thrown around to everyone getting reptiles. but the chances are very unlikely. i was always cautious and chopped the heads off anyway of the ones i was feeding at that time.