These days, there is growing interest in carbonated water.But "carbonated water" is an umbrella phrase that refers to a number of fizzy beverages, so here's the scoop:.Seltzer water is simply water that has been injected with carbon dioxide.Club soda is water that has been injected with carbon dioxide and minerals like potassium bicarbonate.Sparkling mineral water is made from natural spring water, meaning it has naturally occurring minerals.And sometimes these minerals will give the water a bit of natural effervescence.Tonic water is carbonated water that's made with added minerals and one special ingredient: quinine.