From small-portion diets to six-week intensive weight-loss systems that involve cold baths and no breakfast, 2012 has been another fabulous year for the fad diet.
As old-school fetish diets such as Atkins have taken a bit of a beating, others have happily jumped in to take their place.
But what's in store for 2013? We've picked out the best of the new diets hitting those Amazon shelves.