Who: Kirsten Dunst, Halle Berry and Meg Ryan
What: It doesn't sound like the tastiest drop, but Hollywood heavyweights Kirsten Dunst, Halle Berry and Meg Ryan, to name a few, have all been spotted sipping this ancient drop.
Made from an infusion of green tea, black tea and sugar, which is metabolised by the kombucha mushroom, this Chinese tea promises to increase metabolism, aid weight loss, cleanse the blood of disease-inducing toxins, reduce cholesterol and pack a powerful energy punch. And that's not all; it also contains a potent concoction of the highly heralded B vitamins, including B1, B2, B6 and the energy-boosting vitamin du jour.