Just when you thought you'd heard it all where diets are concerned, along comes another one that promises to help you shed more weight than you'd ever dreamed of with the least effort imaginable. So if you think you're keeping up to date by following the Dukan diet, forget it. The latest big idea where weight-loss is concerned is arguably The 17 Day Diet.
And you've guessed it, each stage lasts 17 days. Why? Because, according to Dr Moreno, it takes just 17 days for your body to get used to a diet. After 17 days, your body apparently recognises a diet as an ongoing eating habit, and if you're restricting calories, for instance, your metabolism will slow down.
But is that really the case? Some nutrition experts have already rubbished Dr Moreno's ideas, but there's nothing the weight loss world loves more than a gimmick, so expect to hear more about The 17 Day Diet in the coming months.
So what else do we know about the diet? Well you can't eat fruit and some other carbs after two o'clock in the afternoon. And the only exercise the plan recommends is 17 minutes of walking a day.
Do fad diets drive you mad?