TOWIE's Gemma Collins has always been vocal about her struggle to drop the pounds.
Her latest diet is definitely her most extreme yet, and though it seems to have worked for now, it's certainly not the most sustainable option.
Cleanse master Jason Vale has revealed that the 34-year old reality star checked into his Portugal retreat for a month-long diet of nothing but juice, juice and more… juice.
Since returning home, Gemma has continued with her strict diet, taking to Instagram regularly to extol the virtues of the juicing life.
"She lost two-and-a-half to three stone in total in four weeks, living on nothing but freshly pressed juice," Jason confirmed to The Daily Mirror yesterday.
And looking at these pictures from a charity ball over the weekend, there's no denying Gemma is looking far thinner:
Since finishing the programme Gemma has been showing off her slimmer frame at a series of champagne-fuelled events, but she was keen to get back on the wagon this week.
"And so to bed ….7 days of non stop madness crazy drunk in love kinds of behavior I resign ………… #sleep #water#water #yoga #zen #peace #nocallsplease," she wrote on Instagram yesterday.
Of course, this isn't the first dramatic health kick that Gemma has tried out.
Prior to working with Jason, Gemma had shed three stone using a controversial technique in which she was hypnotised to believe she had a gastric band which reduced the size of her stomach. The weight-loss technique is deigned to curb over-eating by tricking the mind into thinking your body can't handle a big meal.
Having dropped from a size 22 to an 18 using the 'hypno gastric band,' Gemma decided it was time for something even more drastic for her next weight loss kick… and that's where Jason came in.
The brashy TOWIE star signed up to the juice-only programme at Jason's Juicy Oasis, where her eating and fitness routine were supervised by a team of experts.
Gemma's main vices are salty foods like crisps, so prior to starting the cleanse, she was taught about the "psychology of addiction" and how to overcome cravings.
She also worked out regularly, though Jason says it was far from hellish for her. "'She has been doing exercise as well but not military-style. None of it is forced. Nobody can force Gemma to do anything, frankly," he joked.
It's clear Gemma's getting great results… but we hope she isn't taking her dieting too far.