Prenatal vitamins contain essential vitamins and minerals necessary for a fetus's healthy development during pregnancy. While prenatal vitamins are not specifically designed to affect hormones, some of the nutrients in these supplements can indirectly impact hormonal balance. For example, vitamin D has been linked to hormonal regulation. Studies have suggested that women with lower vitamin D levels may have an increased risk of certain hormone-related conditions, such as polycystic ovary syndrome (PCOS). Additionally, some studies have shown that taking prenatal vitamins may help improve mood and reduce symptoms of depression during pregnancy, which could be related to hormonal changes. However, it is important to talk to your healthcare provider about any concerns about the effects of prenatal vitamins on your hormones.