“Jersey Shore” star Sammi “Sweetheart” Giancola shed some serious “baby fat” and “bloat” while partying hard during the filming of the second season of the MTV show in Miami (more pictures below). Sammi unbelievably lost 15 pounds with a healthy diet and intensive cardio exercise routine.

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“I just changed my diet, and the next thing you know the pounds just came off,” Sammi tells Life & Style. “I miss it like crazy, but I don’t eat pasta anymore. I eat my vegetables and try to stay healthy.”

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“I do soccer drills — I jog a lap, then sprint, jog the rest of the way, then sprint again,” she says. “You have to look good in Miami because beautiful people are everywhere you look! You don’t want to turn into a slob.”

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Sammi is happy with her new slender body and she is ready to rock the bikini at those Jersey Shore beaches. The hot Jersey girl look is complete with HNT. “HNT — hair, nails, tan!” Sammi cheers.

Sammi Sweetheart Giancola Weight Loss Before and After Pictures

[images courtesy of Life&Style]