I got the flavorings from preema on eBay - bought banana, chocolate, butterscotch and lemon, and have vanilla and almond from the local supermarket. I don't use much so it's not the strongest taste in the world but it really is a nice little treat to me and helps me get down the amount of soya milk I've been asked to. No nutrition label but the ingredients don't list and sweeteners or sugar and they don't seem to be giving me any problems.
Probably be worth a try for flavoring plain yogurt for those that eat that, or maybe mims etc. I'm going to try choc essence in my next Swiss roll.
Thanks everyone, still v pleased!