Soda water contains Bicarbonate of soda to make it fizzy (as well as other acids) and carbonated water is just made fizzy by carbon dioxide, finally tonic water contains quinine which gives it it's funny taste.
When I go down my mates pub on a weekend, I drink Soda Water and he said that it is purely a barrel of water with a nozzel on top that carbonates it...??? Where would the Sodium Bicarbonate come in there...?
I don't know... my CDC told me to look out for water with alot of sodium in, she said some of her clients that only just get into ketosis often get knocked out of it if they have water with high sodium content. I just thought it was worth mentioning.
I just had one bottle of the evil Nestle and I've got a Brita filter jug so while I'm at home I've been using that, and who knows how much is in my tap water (all I know is it's disgusting). Tomorrow at work I'll get Evian, and keep clear of the devils :devilangel:water (nestle)