Calcium Alpha Ketoglutarate (CaAKG) consists - as the name suggests - of the vital mineral calcium (Ca) and alpha-ketoglutarate (AKG), an essential component of the citrate cycle, the energy cycle in the human organism. In addition to its task as an intermediate product of a wide variety of metabolic processes, AKG is also an important nitrogen transporter. It also plays an important role in the gastrointestinal tract, bone metabolism and the immune system. Alpha-ketoglutarate cannot be added through a conventional diet. Over the course of life, the level of alpha-ketoglutarate in the body decreases. The combination with calcium ensures better AKG bioavailability.