Are all slugs edible? I've heard about people eating escargot, but are slugs just as edible?

I live in MN USA, and came across some all tan ones, but had no camera at the time.
Slugs are not poisonous, but in the wild can pick up the parasite Angiostrongylus cantonensis, also known as rat lungworm, from rodent scat. The parasites can produce a toxic reaction that causes eosinophilic meningitis in humans.