Creatine builds muscle and supports the body´s own cancer defense

With the help of the enzyme creatine kinase (CK), creatine gets "charged up" to the high-energy connection phosphocreatine. This chemical energy is available in organs and cells to handle variegated exercises, f.e. contract heart- and skeleton muscle plus for the upkeep of the internal cell environment through energetic supply of ion pumps ( calcium- and sodium/potassium pumps). In place of energy consumption in the cell, ATP (adenosine triphosphate) is produced by the enzyme creatine kinase (CK) and high-energy phosphocreatine. ATP can be used as cyclopedic energy currency for every biological process, which consumes energy. It can not be used from cancer-cells. 

Creatine and creatine-analogs can harm growth of cancer cells

Creatine and creatine-analogy can harm growth of certain cancer cells significantly. This could be shown on cancer cells in culture and in vivo (Miller et al. 1993; Bergnes et al. 1996; Kristensen et al. 1999). Cyclocreatine, a synthesized connection, harms the growth of this cancer cells already with very low concentrations of and increases sensitivity of cancer calls for conventional chemotherapeutics, partly thousandfold (Teicher et al. 1995).