Masterchef judge Gregg Wallace went viral this week after he shared his typical Saturday routine. He’s not the first celebrity to reveal more about his inner life than he may have intended.

There is a fascination in what celebrities get up to when they’re off duty, and occasionally one will oblige by sharing details of a typical 24 hours.

But sitting down to write a “day in the life” piece is no easy feat. How honest is too honest? Should you mention your diva-esque daily habits? Do your hobbies make you sound too sanctimonious?

The gregarious Wallace is the latest to have a go, setting out his hour-by-hour routine in The Telegraph.

The 59-year-old wakes at 05:00 and reads for an hour before checking the sign-up numbers for his health programme.

Then it’s a trip to the gym, which lets him in early to have the pool and sauna to himself. All that exercise means he has “less than 18 per cent body fat and a six-pack”.

Breakfast with his PA is at 10am at the local Harvester pub, and only two hours later he is back home for lunch that his wife has “ready on the table”.

He then spends 90 minutes in the afternoon with his four-year-old non-verbal autistic son, before playing strategy computer games for “two hours by myself in my home office”.

GETTY IMAGES Image caption, Gregg Wallace has admitted he was wounded by the “cruel” reaction