Dr Xand van Tulleken and dietician Hala El-Shafie help dieters tackle the most hyped diets out there. Meanwhile, cook Stacie Stewart helps the volunteers turn their diets into delicious dishes.

The diets being tested include the 5:2, Master Cleanse, the All You Can Eat and the coffee-based regime. There's also a look at virtual gastric band surgery. Later, the weight-loss regimes road tested include the Grapefruit, Apple Cider Vinegar, Skinny Gut, Raw Food and Fast Food diets. And Xand looks into DIY enemas.
Finally, the weight loss regimes tested include the High-Fat, the Mediterranean, the Cookie and the Paleo, and a diet where a protein solution is fed straight into the tummy.

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