HADHA acts as a mitochondrial peroxidase that promotes fatty acid metabolism by catalyzing the last three steps of the mitochondrial β‐oxidation of long‐chain fatty acids; decreased HADHA expression results in impaired fatty acid oxidation, leading to a variety of metabolic diseases (Ding et al., 2023; Pan et al., 2022). The gene discussed is HADHA; the disease is Other metabolic disease.