Credit: Rosie on Twitter Photo: Rosie Pierri Lifts Weights at the Gym on June 14, 2014

Rosie Pierri is a woman on a fitness mission!

The Real Housewives of New Jersey Season 6 premieres on July 13, and the extended promo showed Rosie, sister of Kathy Wakile, talking about her 30-pound weight loss. Rosie looks great, but she’s still working hard on staying healthy. She’s now a gym regular, tweeting about sessions with her trainer.

Check out this pre-workout tweet on June 13: “So I tell my trainer I feel fustrated .so he says eff everyone and everything let's lift !! IT'S on tom. 7 AM #DEADLIFTS.#CLEAN&PRESS #SWEAT.” Sure enough, Saturday morning, she was at the gym — and later tweeted the photo shown, writing, "Pumped! @GoldsGymTotowa #nojoke #notmessinaround #LetsGo  #Deadlift."

She’s not done, though. After that, she tweeted about taking another step in her health journey: "I'm taking the 90 day challenge weight loss with @ViSalus more details to come who's ready to to take on the challenge with me ?" Rosie got a couple of takers with that tweet, and she updated, "Look for more info to come on Tuesday Let's do this together !!"

So we'll look for more details to come tomorrow (Tuesday, June 17). If you’re curious, you can head here to learn more about ViSalus, aka "the company behind the Body by Vi 90-Day Challenge, the fastest growing health Challenge in North America!" Here’s more about the Challenge itself.

Don’t forget to check out Rosie’s Twitter tomorrow to see what info she shares about her own plans. What do you think — are you in, or just ready to cheer Rosie on from afar?

Catch the Real Housewives of New Jersey Season 6 premiere on Sunday, July 13, 2014 at 8 p.m. ET.

Sources: Rosie on Twitter, ViSalus