In the cross-sectional analysis of 829 women aged 25–45, no significant associations were found between inflammatory markers, metabolic syndrome, and ovarian aging measures (anti-Müllerian hormone [AMH] and antral follicle count [AFC]), except for a modest association between metabolic syndrome and AMH (mean difference 0.085; 95% CI: 0.035 to 0.134). This evidence concerns the gene AMH and metabolic syndrome.