The Bachelorette star has come forward to share details of his personal struggle with mental illness, in a hope to encourage others to share their mental health stories.
Osher first went public with his mental health issues in 2016, crediting listening to other people's stories as an important part of his recovery process.
Talking to ABC Tall Tales and True podcast series on World Mental Health Day on October 10, the popular TV personality said, 'One of the things about mental illness is that it can be very isolating and by sharing stories you actually get to realise that you're not alone.'
He continued, 'And it was in fact only after I started hearing other people's stories, describing pretty much what I went through, not only that I wasn't so special, but those people went through it and they're alright so many one day I'll be alright too.'
Gunsberg says people who openly share their stories are an important part of the education and awareness process.
'These stories illustrate the full gamut of the rollercoaster ride that is the reality of living with mental health challenges but they are so vitally important for all of us,' he said. 'They can be heartbreaking, illuminating, surprising and sometimes even hilarious, and that's exactly what life is like for people dealing with mental health challenges.'
As was reported in 2016, Gunsberg says his mental health started to deteriorate while living in the US.
After being off medication for nine months, a series of personal and professional pressures saw Gunsberg have an episode staggering around the streets of Venice Beach convinced the world was coming to an end.
'All the stress started piling up in my subconcious and was waiting to just explode into my reality,' he said.
When he got home Gunsberg sought help immediately and embarked on a new diagnosis process and care plan.
He says he has come to the acceptance that he cannot handle his mental health on his own.
'I had to learn the hard way that I need daily medication to manage my mental health,' he revealed.
Since outing himself in 2016, Gunsberg has since become a board member of SANE Australia.
'After what I went through, I just knew that I had to help others, I had to help other people realise that you can indeed get better and other people living with those who are struggling are not alone and there is help available.'