Frankie stripped off to reveal her 12st 7lbs body as she starts a new diet, which she hopes will see her transform into a size 8 by summer.
In these new pictures, Frankie - sister of Joey Essex - is posing in an orange two-piece and in one snap is pinching her waist.
Frankie, who left The Only Way Is Essex in January, said: "My confidence has never felt so low.
"Since I have left TOWIE, I've felt like I can't go out and do what I want to do.
"I want to lose three stone. I am 12st 7lbs at the moment and am hoping to be a size 8 by the summer."
Frankie has spoken openly about her battle to keep slim in the past and and previously told Reveal that she began to put on weight in her early teens.
"Along with my school dinners, I used to eat a lot of junk food when I went shopping with my friends," Frankie said.
"We'd always be in McDonalds or Pizza Hut. I'd also go to Harvester and pile the croutons on my salad.
"I didn't really think about the food being unhealthy as all my friends were skinny."
Frankie is now hoping to slim down in time for summer with the help of meal replacement plan ExanteDiet.
Frankie Essex is the new face of the UK's number 1 very low calorie diet website ExanteDiet.com
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