Rylan Clark struggled after the breakdown of his marriage.
The 33-year-old TV presenter split from husband Dan Neal - who he married in 2015 - last year and Rylan admitted it took a toll on his physical and mental health.
He told The Sun on Sunday newspaper: "I got ill and I lost weight, I went down to under ten stone — and I’m six feet four inches, so that’s not good.
"The honest truth is that it’s been s**t.
“I didn’t deal with what happened and now I am. I felt unwell and it was a very difficult time for me.
"My mum was majorly worried about me, as were all my family. I don’t just disappear for four months — that doesn’t just happen.
"Mum has been a lifesaver to me and one of my biggest regrets of this year was putting my mum through me not being well.
"I needed to get back to me."
Rylan signed up for The Six Pack Revolution programme, a 75-day plan guided with personal training sessions by Scott Harrison and was shocked when the physical plan helped improve his mental health.
He explained: "It’s done more for my mental health than it has for my body, which is a crazy thing to say because you can physically see the body change.
"For my head, it was the best distraction, and at the same time it was a way to release a lot of emotion and focus on something other than what’s going on around me."