in preperation-for the shakes lol

There is a sticky regarding what is allowed. Coke zero and dr pepper zero are most definitely allowed but as with all good things they are allowed in moderation. Welldone on getting mentally prepared in advance. Good luck xx

I've been drinking dr pepper zero, 1 can a day and also flavoured sparkling water that is allowed, my fav is sainsburys strawberry and kiwi. Hope you go into ketosis as quickly and easily as me, sounds like your head is in the right place for this. I recommend getting the beck diet book if you haven't already, great book I have just started reading which helps you change your thought process and therefore your actions (over eating). Good luck and come join us on the July starters thread x

Coke zero is keto safe, but some people find it stalls weight loss. I would say try to stick to a certain amount a day. Its easier than you'd think.. I know keto makes me uber sensitive to sweetness and food in general... so I end up just keeping it for the days I'm really suffering

you can also have stuff called bouillon, it makes a savoury drink, not unlike chicken noodle soup (without the bits obviously lol) think you can have 2 tsps a day of it. It's a lifesaver if you don't like the soups and need a savoury kick. Its readily available in tescos and the like.

looks like this:
http://www.kenreilly.co.uk/webtrans/MarigoldGraphics/bouillon/bouillonGreen.jpg