No diet coke as it contains citric acid which may knock you out of ketosis. Coke zero doesn't contain citric acid so some people drink it (including myself, 1 can a day). Some people have said it makes them hungry, but the fizzyness actually fills me up!
I did ask if it had to be coke zero because i read on here somewhere that it did but she said any diet cola.
I think i will give it a miss from now on, im only on day 3 and dont want to stop myself from geting into ketosis! x
Diet coke has the citric acid in it and when you're trying to get into ketosis it's not good as it can prevent you getting into ketosis. When you're in ketosis it doesn't affect you as much and I do have an odd can if theres no coke zero around. Try looking for malic acid in things rather than citric though.
I did the diet 3 years ago, and then they said i could have coke zero - this time she said theyd stopped it, but because i lost weight drinkin it before i do have the odd can here and ther this time....