WEIGHT loss is a common side effect of taking part in I'm A Celebrity...Get Me Out of Here! but Caitlyn Jenner says its why she signed up.
The 70 year-old reality star has revealed she wants to go on the jungle diet so she can slim down for the Kardashian's annual Christmas bash.
"The only reason I'm doing it is to lose a few pounds," Caitlyn said in a video interview ahead of entering camp.
"I gotta fit into that outfit when I come back. I have the family Christmas party to go to. I wanna look good."
Caitlyn was in a playful mood in the interview, pretending not to know that she wouldn't have a glam squad in the camp.
"Do we get hair and make-up?" she deadpanned. "Noooo?! We don't get hair and make-up? Oh my god!"
She went on to add that she thought her fellow campmates would give her more headaches than any critters or creepy crawlies.
"People are far tougher than any snake or spider," she said, adding that she would try to "keep the peace" by being the "parent" in the camp.
Caitlyn is reportedly bagging the biggest payday out of all her fellow celebrities, with the Keeping Up With The Kardashians star getting a £500,000 deal to head into the jungle.
The Transgender former Olympian has said that her dream fellow contestant would be former son-in-law Kanye West.
Kanye is married to Kim Kardashian, who Caitlyn was step-parent to before splitting from Kim's mum Kris Jenner in 2015.
She explained: "Kanye is a good friend of mine and he's good to have an intelligent and interesting conversation with."
The former Olympian also opened up on her previous stint in the show, taking part in the US version of the reality programme back in 2003.
MOST READ IN TV & SHOWBIZ
She shared: "I did the US version of this and it was a very interesting experience last time I did it.
"Last time, I did it with a bunch of people from the States who I knew of. This time it’s a bunch of people from the UK who I potentially won’t know."
Caitlyn's campmates include comic Andrew Maxwell, former Girls Aloud star Nadine Coyle, rugby's James Haskell, and footie pundit Ian Wright.