Glycogen storage disease type III (GSD‐III, also known as Cori disease; OMIM #232400) is a rare metabolic condition caused by an inherited deficiency of the glycogen debranching enzyme, with subsequent accumulation of abnormally structured glycogen (‘limit dextrin’, i.e., the short outer glycogen chains) in different tissues (Hijazi et al., 2021). This evidence concerns the gene AGL and glycogen storage disease III.