David Beckham astounded people around the globe last week after he revealed wife Victoria has "eaten the same thing for the last 25 years".
Confessing the pair had only ever shared food from the same plate once, the former Manchester United player detailed the extent of Victoria's healthy lifestyle.
The Spice Girls singer was said to only eat grilled fish and steamed vegetables, much to David's dismay.
Dad-of-four David told the River Café Table 4 podcast:"I get quite emotional about food and wine.
"When I'm eating something great I want everyone to try it.
"Unfortunately I'm married to someone who has eaten the same thing for the last 25 years.
"Since I've met Victoria, she only eats grilled fish, steamed vegetables. She'll very rarely deviate away from there."
Keen to understand the effects of this diet and whether it's sustainable, Manchester Evening News reporter Dianne Bourne put it to the test, reports the Mirror.
However, it's fair to say that Dianne was less than impressed, with her writing that her meals tasted plain and she was left hungry and tired - not to mention having to deal with the fishy smell in the house.
Journalist Dianne, a mum-of-two in her forties, couldn't believe how expensive fresh fish was in the supermarket, opting for the more reasonable end of the scale with cod loin at £5.75, fresh salmon for £4.75 and sea bass for £5.25.
But if she'd got tuna steak, it would have set her back £7.90.
Her weekly bill came to £40 just for the fish and veg, not counting breakfast or food for her family - and she ran out of fish by Wednesday, needing to fork out another £15.
For breakfast, she would eat fresh fruit, something Victoria is known to be a fan of, and she had the occasional glass of wine for the same reason.
Dianne found the meals to be rather plain and she had to add flavour with a lot of soy sauce, something Posh probably doesn't do.
On day three, she revealed: "I usually head out for a midweek run, but I have to be honest I'm feeling rather lacking in energy and hungry today so I give it a miss."
By day five, she wrote: "The house stinks of fish now, I'm having to empty the bin DAILY to disperse the pong of fish packaging but yet still the odour of the ocean dead lingers heavy in the air."
At the end of the week, Dianne decided to weigh herself and was shocked to learn she hadn't even lost weight, in fact, she had actually gained half a pound.
She admitted she wouldn't be continuing with the Posh Spice diet.
"Either way, it was enough of an excuse to call a halt to this experiment once and for all and return to my regular dieting approach - which is following the Slimming World plan, where you can eat 'free' foods like fruit, veg, meat, rice and pasta - and crucially for me it doesn't leave me feeling hungry," she concluded.
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