She recently showed off her weight loss in Tenerife as she relaxed in the sun, with her newly slimmed-down figure.
And Chanelle Hayes has now revealed her diet secrets, after losing three stone and four dress sizes, following her admission back in August that she'd been on a six-week food binge.
Telling fans at the time, the Big Brother star said, "I have had a really bad 6 weeks diet and nutrition wise. Totally fallen off the bandwagon and have gone from the size 12 I got down to back up to a 14.
"I can also tell in myself that I feel softer and have lost definition which is such a shame."
She added, "I need to get back on it big time as I can feel with every pound gained, a little confidence has been lost."
Check out Big Brother series two - where are they now?
Big Brother series two - where are they now
Brian Dowling
Former flight attendant, Brian won the hearts of the nation and was crowned the series two winner.
Brian Dowling
Brian rose to fame after his win, earning him a host of presenting jobs. He now has the perhaps unenviable job of hosting the Real Housewives of Cheshire's end of season fight / finale.
Helen Adams
Helen Adams was most known for her saying, "I love blinking, I do." She gave us a juicy on-screen romance with Paul Clarke despite having a boyfriend on the outside.
Helen Adams
Much to the BB fans delight, the pair later got together but split five years later. Helen now works as a hairdresser in Bristol.
Paul Clark
Paul Clarke originally locked lips with Penny Ellis. But after she was evicted it didn't take long for his eyes to wander to Helen.
Paul Clark
After his split with Helen in 2006, Paul returned to the career he had before the show and is now a car designer.
Penny Ellis
Bumbling Penny Ellis was known for being the English teacher who went wild and stripped off.
Penny Ellis
After she bared all, the school decided to let Penny go. After making it into panto in Porthcawl, she went back to teaching.
Amma Antwi-Agyei
Coming in seventh place was Amma Antwi-Agyei, she took Big Brother as an opportunity to reveal to her deeply-religious mother that she was a £1,000 a night bisexual lap dancer.
Amma Antwi-Agyei
Amma went on play Yasmin Shawcross on one series of Sky One's Dream Team. Now, she's rumoured to have returned to her stripping work.
Dean O’Laughlin
Dear old Dean finished in third place and walked away with a broken record for building the highest sugar cube tower.
Dean O’Laughlin
After the show, the Brummie music enthusiast teamed up with fellow housemate, Stuart to sell tea-bag bins.
Elizabeth Woodcock
Elizabeth Woodcock entered the house as a website designer from Cumbria. She was a quiet soul who made it to fourth place.
Elizabeth Woodcock
She left the house to discover that naked pictures of herself had been sold by her boyfriend to the Daily Star. She later split from him and made a documentary on motorbiking.
Josh Rafter
Josh was the first ever BB contestant to be voted into the house through the Diary Room door after the series had already started. The fitness fanatic like to show off his buff bod, but it wasn't enough to keep him in the house as he came in sixth place in week eight.
Josh Rafter
Josh is now a property developer who bought the company he worked for.
Narinder Kauer
Narinder was best buds with Brian but she did NOT get on well with Helen. Narinder missed her wedding anniversary in the house but she was evicted on day 29.
Narinder Kaur
Since leaving the house, Narinder has written a book about her time in the house and had two children with her husband. She still pops up on the telly.
Paul 'Bubble' Ferguson
Bubble is perhaps best remembered for his collection of hats, which Brian once stole before starting a ridiculous argument (they loved a play fight). Bubble was the only person in the house who didn't drink, so we're not sure how he managed to survive when everyone else was sloshed.
Paul 'Bubble' Ferguson
Bubble and Dean released the song Standing Tall which charted at 99 in the UK charts. He's also starred in pantomimes, an episode of The Office and in Dead Set.
Stuart Hosking
Stuart Hosking was the oldest contestant in the house. He got a reputation for being a bit sly, and became known for winking when he was being dishonest. He was the second housemate to be evicted.
Stuart Hosking
Firstly: Stuart is RIPPED. Now that's out of the way, we can also tell you that he runs a bin bag business with fellow housemate Dean and has had four children. He also put on a Big Brother pantomime.
Taking to her Instagram story, Chanelle revealed her revised approach by posting pictures of her meal prep for the week, with tuna, hard boiled eggs and boiled potatoes for her lunch.
She then went on to show her followers her other meal options, saying she sometimes "eat[s] the tuna boxes on top of a bed of spinach and one spring onion."
The 31-year-old's latest health kick comes after she opened up to Closer in 2016 about her weight loss journey, confessing she was on the cusp of developing diabetes due to her obsession with food and her inability to exercise because of back pain.
She revealed, “I’ll order so much food that it’s like I’m having a buffet! I’m barely eating any fruit and vegetables, which is terrible.
“I can’t sit still or stand up for longer than 30 minutes without getting shooting pains up my back. Being my weight is making it so much worse, as it’s putting a lot of pressure on my joints, and my muscles can’t support my back. I’m basically in pain all down my body every day."
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Chanelle recently took to Instagram to show off her dramatic weight loss, with many fans congratulating her on her achievement.
She posted a before and after picture to update her followers, due to the fact she was feeling "positive" about her new image.
She said, "Comparing these two pics makes me feel positive... In losing all that excess weight I have gained more confidence and happiness...I have been working hard at keeping (and increasing) my muscle mass.
"This is a long term change I am making so that I can prosper in the long term results. There are no quick fixes. Believe me - I've tried everything!"
Chanelle went on to say, "Hard work, perseverance, consistency and dedication are key."