Just when you thought you knew everything that was considered 'bad for you', here's another one for the list.
Sparkling water has joined the (never-ending) list of things that could make us put on weight.
New research suggests that the carbon dioxide in fizzy water makes us want to eat more.
Scientists found carbonated drinks trigger a surge in a key hunger hormone.
So, it looks like we will have to stick to still from now on!