Now it’s time for diet water

We’ve had bottled mineral water, we’ve had bottled tap water, but now it’s time for diet water, if a recently launched product is anything to go by. Available in a health food store near you, Penta is no ordinary water. It’s key feature? Bio-hydration. Its ‘manufacturer’ claims that the ultra-purified water does not cause ‘sloshing or fullness’. If you don’t believe them they say you should take the Penta challenge: try to drink 500ml in ten minutes.