A method for producing alkali metal and alkaline earth metal pyruvates is disclosed, in which salts of organic acids or acidic organic keto or hydroxy compounds containing as cation one from the group comprising Li, Na, K, Rb, Cs, Mg, Sr and Ba, or mixtures of these salts, are reacted with pyruvic acid at a temperature ranging from -20 to +120.degree.C., if necessary in the presence of a solvent or diluent. In this way, alkali metal and alkaline earth metal pyruvates of high purity are obtained, which can be largely anhydrous and have a very long shelf life. In addition, novel Rb, Cs, Sr and Ba pyruvates are disclosed. These pyruvates are used, for example, to enhance endurance and strength in the field of sport, as protective substances for body cells and tissues, and as food supplements. They are also used for technical applications.