The amount of lithium in the drinking water varies from place to place on this planet. According to Japanese-German research that will be published soon in the European Journal of Nutrition, people live a little longer if their drinking water contains more lithium. It's a shame 7UP no longer contains lithium.
Lithium is a light metal that is found in rocks of volcanic origin. Water that flows through these rocks therefore contains more of this element. As long ago as the nineteenth century there were already companies that bottled and sold this water. Scientists believed that the water had health benefits. It was thought that lithium could help fight infectious diseases such as malaria and soften the symptoms of gout.
Mineral waters such as Vichy and Evian were initially also promoted on the basis of their slightly higher lithium concentrations. At the beginning of the twentieth century there was even beer sold in the US that had been brewed using lithium-rich water. It went by the name of Lithia Beer.
[Am J Psychiatry. 1999 Jan; 156(1): 129.] [Am J Psychiatry. 2007 Nov; 164(11): 1662.]
The most famous lithium product was launched in 1929. After 2 years of experimenting with flavours, Charles Leiper Grigg came up with Bib-Label Lithiated Lemon-Lime Soda. Intended to cure hangovers, this beverage became one of the most popular soft drinks in the world. In fact, it's still on the market, but since 1936 it has gone by the name of 7UP. Grigg advertised 7UP saying that drinking it would make you more energetic and give you lust for life, and on top of that, shinier hair and bright eyes.