Does sparkling water count?

Some mineral water is naturally sparkling, some is carbonated before it’s bottled. ‘Acidity contributes to tooth decay and loss of calcium from bones, but there’s no conclusive evidence that fizzy water itself is harmful,’ says Aisling. Soda water has sodium bicarbonate added to increase the carbonation. ‘It can contain up to 0.5g of salt per litre, so if you drink it daily, watch out, as it can contribute up to 20% of your recommended daily salt intake,’ says Kinvara.