NEW YORK, NEW YORK - MARCH 25: Zayn Malik performs onstage at ZAYN Album Release Party On The Honda Stage at the iHeartRadio
Dimitrios Kambouris/Getty Images for iHeartRadio

Zayn Malik is unveiling many vulnerable moments in his new Zayn autobiography (out today), and one of the most surprising revelations is about a past eating disorder. According to The Guardian, the singer speaks about struggling with it while being in One Direction.

An excerpt reads:

“When I look back at the images of myself from around November 2014, before the final tour, I can see how ill I was. Something I’ve never talked about in public before, but which I have come to terms with since leaving the band, is that I was suffering from an eating disorder.”

“I realized that I wasn’t eating as much just down to the amount of work that we were doing. Our schedule was kind of crazy, so we were all over the place," he later tells the Associated Press about his time in 1D. "It was just more down to losing track of, you know, actually eating, and being super busy and getting caught up with other things that 17- or 18-year-olds do, which normally entails them going out, drinking or partying.” But the "Cruel" singer goes on to explain that he was never officially diagnosed.

Zayn has been candid before, opening up about his anxiety that has led to cancelled shows. He wrote in an essay for Time magazine:

"I just couldn’t go through with it. Mentally, the anxiety had won. Physically, I knew I couldn’t function. I would have to pull out. One of my team members offered to write a statement saying that I’d been taken ill, but I didn’t want to do that. I was done with putting out statements that masked what was really going on. I wanted to tell the truth. Anxiety is nothing to be ashamed of; it affects millions of people every day. I know I have fans out there who have been through this kind of thing, too, and I wanted to be honest for their sake, if nothing else."

For more Zayn, listen to Fuse's Pop Chat podcast break down his Mind of Mine album: