Types of Glycogen Storage Disease

There are currently nine main types of Glycogen Storage Disease. Some have sub types. Use the links below or the ones in the left panel to read about each type. There are other forms of GSD with very small numbers of people affected, we hope to add information about them here in due course.

• Type 0 - glycogen synthase deficiency
• Type I - Von Gierke Disease
• Type II - Pompe Disease
• Type III - Cori Disease
• Type IV - Andersen Disease
• Type V - McArdle Disease
• Type VI - Hers Disease
• Type VII - Tarui Disease
Type VIII - There used to be a GSD Type VIII but this is now classified as a sub type of Type VI.
• Type IX - liver glycogen phosphorylase kinase deficiency

Type Coordinators

There are varying numbers of people in the UK with the different GSD Types, ranging from none to a few hundred. Wherever possible we appoint a volunteer Type Coordinator to act as a central point of contact and source of information on each Type. Please see the Trustees and staff page for details.

The work load of the GSD Type Coordinators varies according to the number of GSD Type members, their needs and the level of professional activity such as clinics, treatments, research, etc. These are voluntary roles and it may not be possible, or even relevant, for all co-ordinators to undertake all of the role description.

The Type Coordinators meet formally twice per year, in addition to any of their activities during the year. The minutes of their meetings are available here.