NAC (N-Acetyl Cysteine) is a potent antioxidant, reducing oxidative stress, a harmful process that can damage reproductive cells and tissues, which can impact fertility. It helps to protect and support the health of eggs and the endometrium (uterine lining), both essential elements for successful conception and pregnancy. NAC provides critical support for sperm health, including factors like motility, count, and morphology, enhancing overall male fertility.