What is IamGSD?

We are a patient-led international group encouraging efforts by research and medical professionals, national support groups and individual patients worldwide.

What is Muscle GSD?

Human bodies make glucose from carbohydrates. Excess glucose is stored as glycogen in our muscles and liver. Muscle glycogen storage disease is when our muscles cannot convert their glycogen back into glucose to power our muscles.

Muscle GSDs links

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If you have another muscle GSD please contact us.


Muscle GSDs are ultra rare conditions, therefore very few doctors have a good level of experience and expertise with them. It is in the interests of patients to concentrate our numbers in the hands of selected clinicians. 

We offer the following suggestions of clinicians around the world. We support them with copies of our publications. If you would like to tell us about others, please use the contact form.