With natural carbonation added. High mineral content. Refresh yourself and taste the difference. The ultimate sparkling water. Water at its best. German quality since 1888. Gerolsteiner is one of the world's leading sparkling natural mineral waters. What's so special about it? It quenches your thirst and has minerals like calcium, magnesium and bicarbonate (see list below). In short, Gerolsteiner tastes good and helps to make you feel good. Minerals for your body. Minerals are indispensable to the human organism, however your body is not capable of producing them on its own. Gerolstener has a high natural mineral content (see complete list of minerals below) and offers the benefits of: calcium, magnesium, bicarbonate, low in sodium.