As shown in Figure 8, based on the co-occurrence of keywords in CiteSpace, which can be categorized into 10 major clusters, research in this area has focused on vitamin D receptor, bone mineral density, vascular risk factors, nutraceuticals, metabolic syndrome, liver fibrosis, active vitamin D, weight loss, fatty liver, and body mass index. The gene discussed is VDR; the disease is Hepatic fibrosis.