It is supposed to sweeten the chore of drinking a healthy eight glasses of water a day. But the bitter truth is that a small bottle of flavoured water can contain as much sugar as a plate of Krispy Kreme doughnuts. The most popular brand, Volvic’s Touch of Fruit in lemon and lime, has 27.5g of sugar in its standard 500ml bottle – equivalent to almost seven teaspoons. Drinking one bottle gives an adult a third of their recommended daily intake of sugar and is equal to eating three powdered blueberry-filled Krispy Kreme doughnuts, which each contain 9g of sugar. The drink, which promises ‘tasty hydration’, contains even more sugar than a Kit Kat bar, which has 22g. But Volvic is by no means the worst offender, according to a shocking study of the flavoured water industry, which sells 300million litres per year in Britain. Campaigners have criticised flavoured water brands for dwelling on the fruit content of the drinks in their advertising without mentioning the high sugar levels. (Daily Mail)