Appearing on Loose Women in the past, Shirley revealed the pounds had steadily crept on over the years.
“For 50 years of my life I never weighed myself at all,” she told the presenters.
“I would go by how my clothes fit, but I was back in England to take care of my mother while she was getting better.
“The pounds crept on and I got a little bit nervous about it.”
At the time, the TV judge turned to intermittent fasting once again to get back on track.