The invention relates to a novel sweet-tasting refreshing beverage, which is free of phosphoric acid and instead contains at least 0.3% by weight/volume of gluconic acid, which is low in minerals, specifically contains less than 250 mg/liter of minerals, which is low in sugar, specifically contains at most 2.5% by weight/volume of sugar, wherein these sugars comprise at least 10% weight/weight galactose and in addition a proportion of isomaltulose and/or tagatose, and which has a glycemic index of at most 35 (GI<;35).