The British High Court has rejected a legal challenge against an Advertising Standards Authority (ASA) ruling, which criticised claims that a children's soft fruit drink 'did not cause tooth decay'. Pharmaceuticals giant GlaxoSmithKline (GSK) lost the high court case over advertising claims for its soft drink, Ribena Toothkind. The company sought a judicial review on an ASA ruling upholding complaints that claims on the drink were misleading.