Reality star Jazz Jennings opens up about binge-eating disorder, 100-pound weight gain - TODAY

Transgender activist and reality star Jazz Jennings is opening up about her struggle with binge-eating disorder.

In a post on Friday, the "I Am Jazz" star shared a side-by-side photo of herself in a sports bra and black shorts, compared to another undated photo that appears to be from a few years ago.

Jennings added that she is sharing the photo to address her weight gain and "hold myself accountable.".

"I’m ready to change my ways; I’ve been saying I’m ready to turn over a new leaf, but I’m running out of trees now," she said.

"I’m ready to take the initiative and create positive changes when it comes to my health and body.

Jennings catapulted to the national spotlight in 2007 following an interview with Barbara Walters on "20/20." After several other high-profile segments and documentaries, she landed a reality series about her life, "I Am Jazz," which aired on TLC.

In early 2020, the reality star posted a bathing suit photo, writing that she was proud of her gender confirmation scars.

She said that her wellness journey taught her she wasn't treating herself with love and respect when she was "doing those unhealthy behaviors."