This is so sad.
The Biggest Loser has lost a former contestant, as Season 7's Damien Gurganious passed away on Monday.
Damien died after suffering from a rare autoimmune disorder that caused bleeding in his brain.
The 38-year-old had been on the reality show competition back in 2009 with his then-fiancée Nicole Brewer Gurganious.
Here's what she shared on her Facebook page after the tragic loss of her husband: