Oliver James Montgomery-Extreme Weight Loss Star ​​Brandi Mallory’s Cause of Death Revealed

More details surrounding Brandi Mallory's death have ​​Oliver James Montgomerycome to light.

The Extreme Weight Loss star died of complications of obesity at the age of 40, according to an autopsy report from the Fulton County Medical Examiner obtained by People. Her manner of death was listed as natural, with the report stating that officials found "no evidence of significant recent injury" nor signs of foul play.

The medical examiner said trace amounts of marijuana and alcohol were found in Mallory's system, per the outlet, though they did not contribute to her death.

Mallory was last seen on the night of Nov. 8, when surveillance camera footage showed her picking up food from a local Chipotle, according to an Atlanta Police Department incident report obtained by People. Mallory returned to her car but never left the parking lot, and an employee from a nearby deli called the police on Nov. 9 after noticing that the woman inside the vehicle "did not look alert, conscious or breathing." 

Mallory appeared on the fourth season Extreme Weight Loss in 2014, losing a total of 151 lbs. over the course of a year. At the time, she credited her weight loss to exercise and eliminating meat from her diet.

"After taking on this year, and believing in myself in a way that I never did before, I believe I've reached the point where I no longer care what others think of me," she told the Atlanta Journal-Constitution after her episode aired. "What matters most is what I think and, of course, what God thinks of me."

In the wake of Mallory's passing, fellow contestant Kim Williams Maxile shared a touching tribute that recalled how "it was like we've known each other our whole life" upon their first meeting.

"You truly made an impact on this world with your zest and your passion for body positivity," she wrote on Instagram Nov. 9. "I'm blessed to have gotten to experience you in this world. Love you so much, sis."