system
Given the following post, respond as if you're commenting on Reddit:
human
[Marvel] How exactly is Wolverine's adamantium poisoning him?

Adamantium is indestructible. It shouldn't be getting into his blood or any other system to be able to poison him.
gpt
Adamantium isn't indestructible, it's *virtually* indestructible. After all, an Adamantium bullet travelling at sufficient velocity *can* pierce a sheet of Adamantium grafted to your skull. Unstoppable force meeting immovable object type deal. Something has to give. Even if that's the substrate that the Adamantium is grafted to is what gives.

But Wolverine is also likewise *virtually indestructible*

Meaning that his body *does not want the adamantium in it*

It is constantly trying to reject it, remove it, adapting.

You see that he gets mildly better at healing *every time he gets injured prior to the adamantium being injected into him*

Likewise, bone isn't solid, it's porous, the adamantium likewise doesn't seal his bones, it still leaves them porous so the bone marrow can do it's thing and, you know, heal him.

But the immune system is fighting the adamantium, and is slowly eating it away, atom by atom, it may only be ae to detatch one atom (of trillions of trillions of them) every hour, or every day, but slowly and surely, as he lives, sleeps, exists, his immune system is trying to purge it 

But it's a heavy metal, doesn't matter if you're Joe Schmuck, or Wolverine, your body just isn't good at getting rid of Heavy Metals, they literally get stuck in membranes in your kidneys and liver.

So once it's off the bones, it gets lodged in his liver and kidney membranes. His body then has to attack *those* organs and rebuild them to purge it, and even then, where does it purge it to? The kidneys can't get it into the urine, the liver can't get it into the bile and into your digestive tract, you just can't get it out.

So it ends up in his kidneys, liver, lymph nodes, causing then to falter, fail, and slowly break down.

There's nothing to dispute that adamantium is any more than a standard metal with specific properties, which means is has good strength in *no more than two planes*, which means there will always be a shear plane by the way it arranges it's lattice.

So it's super super strong, in the same way steel is harder than lead, titanium is harder than steel, and uranium is harder than titanium.

But you can cut lead with steel, you can cut steel with titanium, you can cut titanium with uranium.

Likewise *something* can destroy Adamantium.

Plus, we know that Adamantium is *MAGNETIC*, therefore it has weaknesses that wolverines immune system can exploit, he's adaptive, therefore his immune system simply needs to disrupt that magnetic bond along shear lines.

Plus, we can see when it's injected, it is impure. It is contaminated, it is clearly shown that there is impurities in the metal as it goes into him.

Pure Adamantium is like Pure Vibranium, a practical impossibility, theoretically plausible, but practically unobtainable.

And *that* is how his body breaks it down, he's still flesh and blood, and the science in the XMU isn't *that* outlandish.