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

Please donate online to support our work.

Register with us for special access to the web site, download PDFs and be kept in touch by email.

If you have another muscle GSD please contact us.


We offer a range of publications in English and plan to add four other languages (some are already available courtesy of Euromac). These are initially for GSD5 McArdle’s, other conditions to follow.

Originated the “Living with McArdle Disease” booklet, a series of leaflets and is gradually producing all publications in IAMGSD editions.

Originators of the Handbook, 101 Tips, Medical Overview, the emergency cards and much of the information on McArdle’s.

Translated and produced versions of 101 Tips, Medical Overview and the emergency cards in up to seven additional languages each.

Explore the publications menu to see what is offered.
You may read all publications online free of charge. Once you have signed up with IamGSD you can download PDFs free of charge.
Beside each publication, the three buttons mean:
READ – full publication here free on line and flick through the pages.
PDF – sign up to download a free full PDF file, searchable and printable.
BUY – visit our online shop to buy a printed copy to be mailed to you.