The Let's Do Lunch star finished in third place on Sunday night's series finale, after enduring three weeks of rationed food consisting mostly of small portions of beans and rice.
Mel told The Mirror that she'd lost a stone during her experience describing herself as "half the woman" she was before entering the jungle.
"I lost a stone in the jungle and I'm not happy about it. I just saw myself in the mirror after I got out of the shower and I don't look good naked," she confessed.
"A stone is ridiculous for me. I'm half the woman I was."
Mel, 44, said she was hoping to regain the weight over the Christmas holidays, and is no doubt looking forward to tucking into plenty of mince pies and other festive treats.
The TV presenter was slim before she entered the jungle and viewers noted that she was becoming gaunter each day before our eyes.
Even Reveal's I'm A Celebrity blogger Danielle Armstrong said during the series: "Mel is looking rather skinny."
Mel had admitted before entering the jungle she wasn't looking forward to the idea of losing weight as she preferred to main an athletic figure.
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