Fans are currently watching Sophie back on Geordie Shore while it airs on MTV, but joining her co-stars overseas saw Sophie put on 21lbs during the six weeks she was filming for.
Given that she's on a show where she pretty much had to booze every night, that pretty much can't be helped, right?
But, on her return home, Sophie decided to whip herself into shape and in just seven days, the reality star has already dropped a stone in weight.
She enlisted the help of No 1 Boot Camp in Norfolk and checked herself in for a detox week and workouts devised by ex-military trainers.
Explaining her reasons for doing so, Sophie admitted that she had started to feel "insecure" about her body as filming wrapped up and negative comments on social media began to get to her.
Speaking at No 1 Boot Camp, she said: "I love filming Geordie Shore, but it totally wrecks your diet. I was in great shape before we started filming the last series, but that all went out of the window by the end of it. It is party central for two months and there is no time to go to the gym."
"You need so much discipline to stay in shape and I lost it big time," she admitted. "It does take its toll on the girls in particular and a few of us do start to feel insecure about our bodies by the end of filming."
Sophie added: "I loved every minute of [boot camp] and I was thrilled to lose a stone in a week. I want to go back and do a proper body blitz and get seriously in shape like Holly [Hagan] and Charlotte [Crosby]."
Sophie also revealed that boyfriend Joel Corry, who she has been dating for four years now, had inspired her to embark on her own get-fit mission as he is "super fit."
"He is loving the new me," Sophie gushed. "And [he] is thrilled about my weight loss."
Sophie has claimed previously that boyfriend Joel has indirectly helped her to get into shape, thanks to his love of bodybuilding. Speaking to MTV back in May, she said: "He does competitions and stuff so I do sort of have his diet and I go to the gym with him and try and be as healthy as I can."
Fans have seen Joel appear onscreen alongside Sophie on Geordie Shore in the past, but now she has returned to the show, she has insisted she doesn't want her boyfriend back in the house with her.
We caught up with Sophie ahead of her return to series 13 and she exclusively told us: "I love Joel very much and we do get along, but I'm enjoying being back and just being me, not thinking about Joel."
"I enjoyed [filming this series] because for once it wasn't about me and Joel being together. It was just about me."
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