Pourteymour et al. reported [16] that Quercetin could treat PCOS by reducing serum T and LH levels in patients with antioxidant and anti-inflammatory effects; Wang et al. [17] found that Quercetin could alleviate chronic inflammation in PCOS model rats by mimicking the effect of estrogen, reducing INS level and improving the INS resistance. Here, INS is linked to polycystic ovary syndrome.