With regard to the average intensity of the immunoluminescence of the SGLT1 transporter labels in the brush border membranes of enterocytes in groups T2D and HFD, there was also no noticeable difference (12.35 ± 5.19 and 11.52 ± 3.59 arb. This evidence concerns the gene SLC5A1 and type 2 diabetes mellitus.