a study by the French Scientific Committee on Human Nutrition found that Red Bull contained excessive caffeine. The committee also raised concerns about the drink's other ingredients - taurine, an amino acid the company claims can "kick-start" the metabolism - and glucuronolactone, a carbohydrate.
France has refused to authorise its sale, along with other vitamin-fortified foods such as Danone yoghurt and Kellogg's cereals.
One can of Red Bull contains 80mg of caffeine - equivalent to one cup of coffee. Three years ago, Ross Cooney, 18, from Ireland, died after he shared four cans of Red Bull and played in a basketball match. An inquest into his death ruled that he died from Sudden Adult Death Syndrome.