It is excreted by the kidneys, but according to the studies I looked at, for aluminum that gets in the blood some of it gets into bone and brain and other places where some portion stays there for years.
Point being that for a given amount of aluminum, many orders of magnitude more of it is still in the body years later if it was injected as compared with ingested.
I'm not saying this is harmful necessarily, but it is not something I would simply dismiss.
> but according to the studies I looked at
(Not trying to be flippant, more just curious) Want to link to those?
Best to ask for feedback but of course they won't give it to you. I thought I did really well after 6 interviews with a FAANG company. They let me down by saying that another candidate was preferred. I pressed for feedback a month or so later and was ghosted. So I submitted a privacy request to the privacy and legal team about all and any data pertaining to the hiring process and interview, and was given a massive dump of their talent management system, plaintext notes of the interviews, group chat messages discussing me, etc.
It turns out I had a pretty bad read of the situation; there was some things that I had said that were misconstrued, some bad traits that I wasn't aware of, and then the key reason I was rejected (lack of domain exertise and relevant experience).
Anyways glad I went down this route, I still need to process the data and translate it to improving myself, but as my buddy GI Joe says, knowing is half the battle.