system
Given the following post, respond as if you're commenting on Reddit:
human
[Futurama] Why doesn't everyone have worms?

So Fry eats a bad sandwich and suddenly he's in peak physical and mental condition. Seriously,  why isn't it the norm for people to play host to this species? Gross out factor of "having worms" aside, there doesn't seem to be a downside. Fry only gets cold feet because he's worried Leela loves him for who the worms made him, not for himself. Most people aren't going to care about that distinction.
gpt
I always figured the whole scenario was unique in some way.

Like, either Fry managed to stumble upon the one sandwich in the galaxy that was infested with a beneficial parasite, or maybe Fry's special brainwaves (or lack of) had something to do with the worms being as useful as they were.

But essentially anyone else eating any other sandwich would just end up with food poising at best.