Medium-chain fatty acids (MCFAs), found in dairy and coconut oil (Avallone et al., 2019), act as agonists of peroxisome proliferator-activated receptors (PPARs), which influence brain function by enhancing insulin sensitivity and modulating inflammation, particularly in diseases like PD and MS (Chang et al., 2015). The gene discussed is INS; the disease is myeloid sarcoma.