Coliesa McMillian, a mother of four from Louisiana who became known for her appearance on a reality show called 'My 600-lb. Life' passed away Tuesday at a Louisiana hospital, TMZ reports.

According to TMZ, her cause of death is currently unknown. 

McMillian appeared on Season 8 of the show at 643 lbs. She said she chose to participate in the series due to the effects of a lifetime of eating to deal with trauma and mentioned that she wanted to regain control of her life for the sake of her daughters.

She's survived by four daughters as well as several brothers and sisters who held funeral services for her on Thursday and Friday.

McMillian was 41 years of age.