Based on the co-occurrence of keywords analyzed using VOSviewer, “insulin resistance” was the most frequently occurring term, with 969 mentions, followed by “obesity” with 526 mentions, “oxidative stress” with 457 mentions, “metabolic syndrome” with 313 mentions, and “C-reactive protein” with 272 mentions (Table 7, Figures 9(b), 12(a)). Here, CRP is linked to obesity due to melanocortin 4 receptor deficiency.