In rodent models of diabetes and high‐fat diet, inulin supplementation did not significantly alter glial markers (GFAP, GDNF) in the colon or brain, nor did it affect myenteric neuronal subpopulations or enteric glial cells, despite reducing inflammation and improving colonic motility (Hosseinifard et al. 2019; Beraldi et al. 2020). The gene discussed is GDNF; the disease is diabetes mellitus.