My 600-Lb Life Star Dolly Martinez Dies at 30, Sister Slams 'Cruel' Online Comments

Dolly's sister Lindsey Cooper defends her late sibling against insensitive social media attacks.

Apr. 13, 2026 at 11:54am

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A ghostly, translucent X-ray photograph of a human heart rendered in shades of blue and grey against a dark background, symbolizing the resilience and fragility of those dealing with severe health challenges.A poignant X-ray image captures the fragility of the human heart, reflecting the complex health battles faced by those like Dolly Martinez.Houston Today

Dolly Martinez, a former cast member of the TLC reality show My 600-Lb Life, has died at the age of 30. Her sister Lindsey Cooper announced the tragic news on Facebook and lashed out at online users who made insensitive and hateful remarks towards Dolly after her passing.

Why it matters

Dolly's story on My 600-Lb Life highlighted her struggles with mental health and food addiction, and her passing at a young age is a tragic loss. The online backlash her family has faced underscores the need for more empathy and compassion when discussing individuals dealing with complex health issues, even after they have passed away.

The details

Dolly Martinez appeared on Season 10, Episode 12 of My 600-Lb Life in January 2022. The episode showed her moving from Fort Worth to Houston to be closer to her bariatric surgeon, Dr. Now, in a bid to qualify for weight-loss surgery. During her time on the show, Martinez lost 40 lbs but was not approved for the procedure. Her sister Lindsey Cooper says Dolly continued her weight loss efforts after the show.

  • Dolly Martinez appeared on My 600-Lb Life in January 2022.
  • Dolly Martinez passed away on April 11, 2026 at the age of 30.

The players

Dolly Martinez

A former cast member of the TLC reality show My 600-Lb Life who passed away at the age of 30.

Lindsey Cooper

Dolly Martinez's sister, who announced her passing on Facebook and defended her against 'cruel and mean' online comments.

Dr. Now

Dolly Martinez's bariatric surgeon who she was trying to qualify for weight-loss surgery with on My 600-Lb Life.

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What they’re saying

“My Facebook is my safe space a place where I can share what's on my heart. I'm allowed to grieve my sister, Dolly, here. I know many people knew her from a show or TikTok, and that's okay but please remember, there's so much more to her than what was seen online or on TV.”

— Lindsey Cooper, Dolly Martinez's sister

“She deserves peace, and she deserves kindness. And to everyone online being cruel and mean and attacking not only dolly who can no longer defend herself but me and my family. From the bottom of my soul and as disrespectfully as possible f*** all the way off.”

— Lindsey Cooper, Dolly Martinez's sister

“Oh and yes for those pointing out how im just as fat or saying I'm the next to go in the family just know I have chronic health problems and metal health issues and I take meds that cause me to gain weight and I'm working on getting the weight off. But that's not for you to point out. Thanks for coming to my ted talk”

— Lindsey Cooper, Dolly Martinez's sister

What’s next

Dolly Martinez's family continues to grieve her loss and advocate for more compassion towards individuals dealing with complex health issues, even after they have passed away.

The takeaway

Dolly's tragic passing at a young age highlights the need for greater empathy and understanding towards those battling severe health challenges, and a rejection of cruel online attacks even after someone has died.