Speaking to WHO, Donovan - who shed 17 kilograms during her stint on the hit show - revealed her shock at seeing her post-jungle weight loss.
“When I looked in the mirror, it was a shock to my system. I don't know if it aired, but I think I said, 'I'd lost the weight of a small child on a TV show,'” she told WHO, “But it was so bizarre just seeing your body change and my face is different, my skin's healthy, and yeah, there's this glow.”
The Australian Idol star also revealed that she plans to continue her weight loss mission, with the help of I’m A Celebrity costar, Kris Smith.
“I will definitely take him up on that offer and I'd love to go for a walk and not be miked and just be able to have a good old chat and a chin wag, and Kris is a great guy, down to earth.”
Smith, the model and ex boyfriend of Dannii Minogue, discussed his commitment to helping the singer.
“I'll help Casey with absolutely anything she wants,” the 38-year-old told WHO, “I've got a few friends which I've helped do exactly the same thing. And I was heavy as a child, so I understand exactly what she's going through.”