magazine: "Kerry's lost a lot of weight since moving in with Ampika.
"She's now just over 8st and a size 6 and hasn't even been exercising.
"She's just been juicing and doing the Skinny Revolution plan."
Along with a meal plan, Skinny Revolution includes daily injections of a protein-based hormone that acts as an appetite suppressant.
Those on the diet are advised to have the jabs for two to three weeks.
Ampika has spoken about her weight loss plan on Facebook Credit: FACEBOOK She also shared this before and after picture of Kerry one month after the star started the injections Credit: Instagram On her Skinny Revolution Facebook page, Ampika says: "People keep saying, does this injection work?
"For you all sceptics at home, keep watching this space. I'm going to keep showing you people every that are losing weight on this appetite suppressant."
One month into the plan, Ampika shared a picture of Kerry on her Instagram page to show how the star was getting on.
At the time, she said: "@kerrykatona7 lost 1stone in 2 weeks. no shakes, no starvation, no gimmicks this works #toned #weightloss#trim #slim #skinnyrevolutionuk."
MOST READ IN TV & SHOWBIZ Kerry's weight has yo-yoed over the years, with her going from a size 16 down to an eight.
In 2016, the star told fans she had undergone a "mini tummy tuck" at a clinic in Kent.
At the time, she tweeted: "Well I’ve been recovering from having a s**t load of lipo!! #dontjudge!! 5 kids and all!! And a mini tummy tuck!Just a kick up the a**e x."
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