GLUT‐i1 and GLUT‐i2 preferably inhibit GLUT‐1 and GLUT‐4 over GLUT‐2 and GLUT‐3 (Table 2).20 GLUT‐i1 competes with glucose for the same binding site as determined in glucose competition experiments and crystal structure analysis with hGLUT‐1 (Table 2).20 However, an impact of GLUT‐i1 or GLUT‐i2 on cancer cell growth has not been described. This evidence concerns the gene SLC2A4 and cancer.