‘My 600-Lb. Life’ Star Dolly Martinez’s Cause of Death Revealed

By TMZ Staff Apr 13, 2026 | 1:23 PM

Dolly Martinez, who appeared on “My 600-Lb. Life,” recently died … and TMZ has learned more about her tragic passing. Staci Thurman, Dolly’s mom, tells TMZ … the 30-year-old died of congestive heart failure at a Fort Worth hospital. Dolly had…