Ruben has lost 104 pounds thus far, he revealed previously, and when he left the show for the second time, his trainer Dolvett Quince urged him to "shock the world" with his ultimate transformation.
Taking up that challenge, Ruben affirmed, "When you see me on the finale, trust me, I'm going to be the baddest, finest, freshest person in the theater. Believe that."
In a conference call with reporters, the Velvet Teddy Bear, as he's known, was diplomatic when asked about the controversial decision to allow him to return to the show, reported E! News on December 4.
Ruben had initially been eliminated. However, when producers discovered that Jillian Michaels had supplied her team with caffeine supplements without permission, they invalidated the weigh-in results for that week. Result: Ruben's triumphant return.
Asked if his return was a ploy by producers to bring back the show's first celebrity contestant, Ruben denied those rumors.
"I don't think that happened. I have no control over what people decide to do," he said diplomatically.
"My only concern was my health and coming back to the show, so I don't think at all it was a conspiracy to bring me back because they were all sad that I had to leave," he declared.
"I don't think they wanted me back any more or any less, it was just something that happened. And because of fairness issues, they brought me back."
Ruben has been blogging about his experiences for Parade magazine. In his final blog on December 4, he reflected on his feelings at being eliminated for the second time.
"I’m going home again. Well, it’s my time to go and I’ll miss the ranch," he admitted.