[_Robbie]

I am skeptical that his explanations are completely pseudo-scientific and have no basis is fact. If these explanations sound unscientific, I think it is more likely that it from the author simplifying the explanation of his problem, and perhaps he is confused about or is miss-communicating what his doctors have told him.

  One person, who I was living with to shorten my commute to the hospital, which I was visiting three days a week for treatment ...

Getting treatment at a hospital implies that doctors identified some known medical condition they could treat.

  My body retains toxins—and not, like, generic “toxins” that health nuts talk about, I mean real toxins, like benzene and mercury.

If there are tests for benzene and mercury, this could indicate a medically detectable problem. He also seems to dismiss the pseudo-scientific explanation of toxins.

  My body rejects things it should keep, like magnesium. Especially magnesium. Also zinc.

Again, if there are tests for this, there might be some truth to this.

It is unclear how much of his description of his medical problems is known for certain, or how much of this is speculation. He admits that he "barely understand"s it. I would like to hear a medical explanation for why his explanation is impossible or problematic before concluding that it is simply pseudo-scientific gobbledygook.