We've gone from looking at abstinence as worthwhile to being a pointless, hair-shirt kind of exercise. The doctors and dieticians are out on this one as well - that the benefits are not proven, that the "purification" is pretty pointless.
But after the heady excess of the festive season, I don't think it's a bad idea to lighten up a little, loosen up the waistband a bit. And summer is the perfect time for this - it's so easy to look at a solid salad for dinner or beautiful stone fruit with yoghurt for breakfast, when everything is at its best. A tray of oysters for lunch in the courtyard, when it is simply too hot to cook and the only thing simmering is your temper.
Two places that immediately spring to mind at this time are Shop Neutral - full of lovely little pamphlets on doing the detox (if you MUST) and Health Bowl Cafe, where you can find hefty salads full of organic produce from right here in Harvest Hall and grain-filled wholemeal buns from BACKhaus Bakery. And Leah will make you a fresh juice while you wait, with heaps and heaps of vegetables.
Get your health on and your taste on at the same time - it is the best of both worlds, really.