The most common clinical history in patients with<unk>  (GSD-0) is that of an infant or child with symptomatic hypoglycemia or seizures that occur before breakfast or after an inadvertent fast. In affected infants, this event typically begins after they outgrow their nighttime feeds. In children, this event may occur during acute GI illness or periods of poor enteral intake. Mild hypoglycemic episodes may be clinically unrecognized, or they may cause symptoms such as drowsiness, sweating, lack of attention, or pallor. Uncoordinated eye movements, disorientation, seizures, and coma may accompany severe episodes.<unk>  affects only the liver. Growth delay may be evident with height and weight percentiles below average. Abdominal examination findings may be normal or reveal only mild hepatomegaly. Signs of acute hypoglycemia may be present, including the following:
Glycogen storage disease type 0
Glycogen storage disease type III
Glycogen storage disease type I
Glycogen storage disease type II
Glycogen storage disease type IV
Glycogen storage disease type V
Glycogen storage disease type VI
Glycogen storage disease type IX