And this afternoon she showed off the full extent of her incredible weight loss, posing in a bright pink bikini on Twitter.
Flaunting her toned abs and super hot curves, Sam basically has every girl's dream body following a strict pre-summer diet and workout regime.
[ Joey Essex moves on from Sam Faiers, snogs a new girl in front of the paps ]
And after a sneaky look back at her latest pics, it's pretty obvious how she did it - the simple 'no carbs before Marbs' approach.
Posting a pic of her lunch during her recent trip to Ibiza, there wasn't a carb in sight on Sam's seafood platter.
The 22-year-old has also been hitting the gym hard, following in Lucy Mecklenburgh's footsteps and earning herself a lean and toned body the healthy way.
Sam threw herself into a hardcore workout regime following her split from Joey in June, shrinking from a size 10 to a size 8 in a matter of weeks.
The pair have since remained tight-lipped about their break-up, with Joey moving on by attaching himself to another girl's face at Yahoo! Wireless festival.
Sam found the whole thing traumatic, tweeting: "Known this girl since I was 7, just shows u... [sic]"
But she's certainly made the most of her time following the bitter split, jetting off to Ibiza with her pals for a week before heading over to Vegas for more bikini frolics earlier this week.
And she's not finished yet, today tweeting that she'll be taking her new hot pink bikini to LA with her... *sigh*.