Editing Illithid (section)

=Illithid Physiology=
Illithids consist of... purple, mostly. Just brains and purple.

Their alien physiology has stumped our crack (addict) biology team even after years of scientific scrutiny. It is thought that if we could crack the mystery of why these skinny creatures subsist on a diet of nothing but fat and calcium, we would be closer to... something.

Look, just look up "aberrant" in the dictionary. We can't offer you much for the time being.

In actuality, Illithid physiology is a moderately altered version of their host organism's body (see mating practices). The brain of the host is replaced by a tadpole thing, and the digestive tract is altered to aid in the consumption of brains and their psychic essence. And of course, they grow tentacles and Sarlaac mouths and lose all of their hair.

Explained somewhat in 3.5's Tome of Darkness, the resulting creature is entirely conscious of its organs and body, as opposed to being autonomous. There is a tiny part of the creature's powerful mind constantly remembering to make sure the heart beats, and regulating digestion. Things like that. So they eat normally, and extract maximum nutrition from it. The method of creating an illithid destroys the brain, which includes all those hormone producing glands in the skull that keep a person healthy. This is why they need brains to keep their body from decaying. The memories and thoughts consumed are... well "flavor" to put it in the least disgusting way possible. These memories, thoughts, and emotions are just as necessary as the hormones contained within the brain for an illithid that consumes only the brains of unintelligent creatures or animals will regress into a ravenous beast, actually pretty similarly to the [[Kroot]].

There is apparently a cult of illithid monks/clerics known as The THOON (yes all caps) who worship a god or philosophy also known as THOON (see below for more on THOON and The THOON). They minmax their bodies as well as their minds. The elder brains hate them. They've been out of circulation since 4e landed. But if you need a mastermind who can roundhouse kick the fighter through a wall after the party blitzes through his mooks, look no further.

For the morbidly curious about what'd happen if you ate an illithid's brain, according to 5e's Volo's Guide to Monsters, nothing good. Apparently, each bite into an illithid's brain releases an intense flood of memories that the illithid developed/consumed in its life, so strong it'll probably drive the typical consumer insane. As to how [[Elminster]] knows this, he refuses to explain.