Mutations in SLC2A2, or GLUT2, can lead to Fanconi-Bickel syndrome, with disorders including glucose and galactose intolerance, hypoglycemia, and hepatorenal glycogen accumulation (Al-Haggar et al., 2011; Grünert et al., 2012). This evidence concerns the gene SLC2A2 and glycogen storage disease due to GLUT2 deficiency.