The AGSD-UK provides support and advocacy for individuals and families affected by a Glycogen Storage Disease (GSD). AGSD-UK is the national support group for all people affected by any of the 14+ Glycogen Storage Diseases (GSDs). GSD is a rare disease. We are the national charity for people experiencing Glycogen Storage Disease, their families and carers as well as for medical professionals working in this field. As the UKs main charity in this area, we support people with the disease, promote research and raise public awareness of GSDs.