Its invisible when you drink it, but a coalition of doctors and nutritionists says there is far too much sugar in soft drinks.
On a day like today the manufactures are making a fortune, but a new survey shows four out of five soft drinks contain more than six teaspoons of sugar.
Three types of ginger beer in the research had more than 13 teaspoons of sugar.
Many so called up-market products such as elderflower drinks and fruit crushes had as much (or more) than a typical cola - which has nine spoons.
The sugar debate is reaching its climax here in the UK.
After years of behind closed doors expert meetings, finally top scientists are about to deliver a new verdict.
Before the end of June 2014 the most influential of the government's nutrition advisers will issue their long awaited report on the health impact of sugar.
That will reframe this entire argument - a clash between those who want sugar tax and warning labels - versus those that say that is nanny state thinking.