And now, thanks to a sneak peek of tomorrow night's episode, we have an answer: Sure as hell looks like it.
"I weigh more than him now," the uber-skinny Alex says of his jungle cohort in the clip, below.
Adds a concerned Gina: "He's not doing too well -- I can tell."
And she's right: Alonzo soon describes his maladies, and trust us, it ain't pretty. So what's going on with the former military man? Watch the clip to find out, then see if he can survive being Stranded tomorrow night at 10/9c.