; 2Division of Metabolic Disorders, Children’s Hospital of Orange County, Orange, California, USA; 3Division of Genetics, Nemours Children’s Clinic, Jacksonville, Florida, USA; 4Departments of Pediatrics and Medicine, Columbia University Medical Center, New York, New York, USA; 5Department of Pediatrics, University of Florida College of Medicine, Gainesville, Florida, USA; 6Department of Medicine Diagnosis and management of glycogen storage disease type I: a practice guideline of the American College of Medical Genetics and Genomics 1© American College of Medical Genetics and GenomicsACMG StAndArdS And GuidelineSPURPOSEThis guideline is intended as an educational resource. It high-lights current practices and therapeutic approaches to the diagnosis and management of GSD I