<Table> <Tr> <Td> </Td> <Td> This article needs more medical references for verification or relies too heavily on primary sources . Please review the contents of the article and add the appropriate references if you can . Unsourced or poorly sourced material may be challenged and removed . (June 2015) </Td> <Td> </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article needs more medical references for verification or relies too heavily on primary sources . Please review the contents of the article and add the appropriate references if you can . Unsourced or poorly sourced material may be challenged and removed . (June 2015) </Td> <Td> </Td> </Tr> <P> Glycogen is a multibranched polysaccharide of glucose that serves as a form of energy storage in humans, animals, fungi, and bacteria . The polysaccharide structure represents the main storage form of glucose in the body . </P> <P> In humans, glycogen is made and stored primarily in the cells of the liver and the muscles, hydrated with three or four parts of water . Glycogen functions as the secondary long - term energy storage, with the primary energy stores being fats held in adipose tissue . Muscle glycogen is converted into glucose by muscle cells, and liver glycogen converts to glucose for use throughout the body including the central nervous system . </P>

The storage form of glucose in the body is