Since embarking on a new diet and fitness regime, Katie Price’s sister Sophie looks absolutely amazing.

The pretty blonde has clearly worked hard to lose the weight, some of which she credits to detox tea, and she's so happy, she's shared the results with her friends on her Instagram profile.

Next to the snap of her showing off her new trim figure, Sophie wrote: “In the last 7 months I have lost 3 stone with the help of @booteauk I can not recommend this enough!!#Bootea #Weightloss #Diet.”

Katie was quick to shower Sophie with praise for her new look, sharing the picture on her own social networking site with the caption: “Well done to my sister@sophie_pricey for losing 3 stone,” and loads of high fiving emojis.

The sisters have a very close relationship with mum-of-five Katie recently gushing about their friendship.

“Sophie's my younger sister. I've seen her grow up, so confident and so clever at borrowing my clothes and make-up,” Katie wrote on her website.

“She is also my best friend, I love going shopping with her, pampering her and doing what sisters do best – having fun together!”