+Glycogen is the body's secret energy vault, a complex sugar serving as a vital [Energy Storage](/wiki/energy_storage) in animals and fungi. It stands ready in [Liver](/wiki/liver) and muscle cells, a quick-release fuel for when glucose levels ebb.
+## See also
+- [Glucose](/wiki/glucose)
+- [Starch](/wiki/starch)
+- [Metabolism](/wiki/metabolism)
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