‘My 600-lb Life’ star Dolly Martinez breathes her last

Dolly Martinez, My 600-lb Life star, has died at the age of 30.

Her death was announced by her sister Lindsey Cooper, who wrote in a Facebook post, "It is with a heavy heart that I share the passing of my beautiful sister."

Cooper continued, "Dolly had the brightest personality she could light up any room with her laughter, her kindness, and her loving spirit. She had a way of making everyone feel special, and her warmth will stay with us forever."

"While our hearts are broken here, I find comfort in knowing she is now reunited with our dad in heaven. I can only imagine the joy of that reunion. Rest peacefully, Dolly. You will always be loved, always be missed, and never forgotten," her message further read.

The tragic update comes days after Cooper posted an update on Friday, asking fans to send their thoughts and prayers in the wake of Martinez being hospitalized.

"Today is national siblings day and it for sure was a hard one,” she wrote via Facebook. "I haven’t made any post or let many [people] know but my sister Dolly is in the hospital and is fighting for her life. At this time I ask for prayers and privacy as we as a family navigate through this hard time."

Martinez was renowned for her appearance in season 10 of the hit reality show, My 600-lb Life, which documents the lives of people who weigh over 600 pounds, as they struggle to lose weight and may even undergo surgeries.

In her 2021 episode, Martinez weighed just under 593 pounds, and relied on supplemental oxygen to breathe properly.

She was shown meeting with the show's bariatric surgeon Dr. Now and after the episode, moved to Houston to be closer to the surgeon's office. She ultimately lost 40 pounds on the show and was not approved for the weight-loss procedure.

Martinez is the latest in a long line of My 600-lb Life subjects who have died following their appearance on the show. 

Among those have died after documenting their attempted weight-loss journeys are Gina Krasley, who died at age 30 in 2021, Larry Myers Jr., who died in 2023 at the age of 48, Latonya Pottain, who died in 2025 at age 40, and Pauline Potter, who died at the age of 62 that same year.