In 2016, the fitness DVD market was valued at £200m in the US – and, just a year before that, eBay reported that sales of exercise and diet plan DVDs had increased by 150% in the weeks immediately following Christmas.

However, things seem to be changing at last – and for the better. In fact, the official DVD chart shows that, as of yet, there’s not a single fitness DVD in the top 100.

Kelly Brook, for one, is incredibly pleased to hear it. In fact, the model has suggested that it’s high-time we turned our back on quick-fix weight-loss DVDs – and for good.

Sitting down to talk about the issue on ITV’s Loose Women, Brook reminded viewers that she herself released Strictly Come Dancing: The Workout with Kelly Brook and Flavia Cacace in 2008.

“I made a DVD with Flavia Cacace and it was all about learning how to dance,” she said.

“It wasn’t about weight loss, but what I’ve seen in the press recently about these women doing these crazy crash diet plans, saying ‘Buy my DVD, you’re going to lose weight in like four weeks’… I just think it’s so unrealistic in terms of sustainability.”

Brook continued: “I think people just want a quick fix and they say to me, ‘What do you do?’

“I just say, ‘I train every day and I try to eat well, and then sometimes I don’t. And I use a few little filters on my app.’ I love a filter.

“But I don’t starve myself, and I don’t do anything drastic. I think you’ve just got to embrace your body shape.”

Kelly Brook just underlined the big problem with celebrity weight-loss DVDs