"I've lost over 40 pounds..no, it was not in the same month, it's been over time!!" wrote Molly, who revealed she dropped the weight during a six-month period of time.
"I used to struggle with losing weight and like I said, I've tried everything. When I started being more conscious about what I was eating... I saw results."
Back in April, Molly shared with fans she had "lost 32 pounds" since starting a special detox diet.
The 43-year-old from Georgia starred on Season 5 of 90 Day Fiance with 27-year-old Luis, followed by Season 3 of the series' 90 Day Fiance: Happily Ever After? spinoff.
Molly fell for Luis while vacationing in the Dominican Republic, and then Luis proposed marriage after two months of a whirlwind romance.
After the couple wed in July 2017, Luis permanently moved to the United States, but then their relationship quickly fell apart. Molly accused Luis of changing as a person and being disinterested in her children.
Molly therefore filed for divorce in January 2018, and the paperwork was reportedly finalized on May 4.
Luis got remarried only five months after the divorce was finalized on September 19, and his decision to jump into a new committed relationship so soon has resulted in an ongoing war of words between Luis and Molly on social media.
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On Tuesday, Molly appeared to throw some shade at Luis on Instagram by sharing a side-by-side comparison of her face before and after the weight loss.
"When you're an emotional eater and decide the motion cross the ocean had no devotion -- #getyolife #noshamelivirae."