In the group of HD patients, it was observed that patients with MICS were characterized by higher concentrations of adiponectin (6.9 ± 4.3 μg/mL vs. 5.1 ± 4 μg/mL; p = 0.03) and lower concentrations of myostatin (3108.5 ± 1525 pg/mL vs. 4412.4 ± 2478.1 pg/mL; p = 0.006) compared to HD patients with normal nutritional status. This evidence concerns the gene MSTN and Huntington disease.