All are inborn error of glycogen metabolism except.. Phenyl ketonuria

All are inborn error of glycogen metabolism except?
a. Essential fructosuria
b. Phenyl ketonuria
c. Galactosemia
d. Glycogen storage disease

(b) Essential fructosuria is due to aldolase B defect leading to accumulation of fructose-1-P
Galactosemia (serious) is due to decreased Galactose-6-P uridyl transferase leading to decreased glycogen synthesis.
Types of glycogen storage diseases (GSD) include:
Type I (VonGierke's): ↓ G6P
Type II (Pompe's): ↓ lysosomal maltase
Type III (Cori's): ↓debranching enzyme.
Type IV (Anderson's): Absent debranching enzyme
Type V (McArdle's): ↓ muscles phosphorylation.