I feed mealworms and superworms occasionally to my frogs without any problem. I do not chop off any heads and I have never had a mealworm or superworm chew its way out of any frog.

I always thought the idea of this to be ridiculous. How the heck is something supposed to survive the stomach acids of a frog? Also how are they going to breath inside a frog? You think the outside of a frog is wet, you should see the inside.