The World Health Organization wants to bring sugar consumption down to 26-32 grams a day. Is this really attainable when a single can of cola contains 40g? The road ahead might be long and bitter, but the war against sugar has already started.

Growing health concerns mean that US soda sales are declining. People are avoiding classic versions made with corn syrup - but they're also steering clear of 'healthy' diet sodas, due to their artificial sweeteners. Can a “Pepsi made with real sugar” make an impact?

Health advocate Sarah Wilson has helped 350,000 people control their sugar intake with her ‘I Quit Sugar’ programme and cookbooks. SodaStream is sponsoring her latest cookbook, providing recipes for sugar-free kids' drinks.

From e-cigarettes to Coke Zero, people see ‘light’ alternatives as healthier – based not on the ingredients, but on everything from packaging colours to product labels. But if it’s simply a matter of perception, is a ‘healthy high’ truly achievable?