My advice is not to drink zero calorie drinks, I know loads of people do and I know it says you can in the SS booklet now but I have seen loads of clients who drink it and then it leads to cravings. I had one lady lost 7 stone and then started drinking coke zero and swore blind that as soon as she did she suddenly became very hungry, now whether that was physical hunger or psychological hunger it was still hunger so I always recommend that people stick to black coffee, black leaf based tea and the lifeblood of this diet and the passport to super quick weightloss which is water.....