Infertility is defined as the failure to generate a clinical pregnancy after 12 months of regular and unprotected sexual contact. It is believed that 8-12% of reproductive-aged couples globally are affected by it. Female fertility decline begins around 25-30, and the median age at last birth is 40-41 years in most studied populations with natural fertility. Over the last decade, the literature on the relationship between nutrition and human fertility has grown significantly, culminating in identifying a few distinct patterns. Supplemental folic acid consumption, particularly at higher levels than those recommended for the protection of neural tube abnormalities, has been linked to a reduced frequency of infertility, a decreased risk of pregnancy loss, and greater success in infertility therapy. Vitamin D, on the other hand, is well-known for its role in calcium and phosphorus homeostasis and bone mineralization. There is some evidence that, in addition to the conventional regulators of human reproduction, sex steroid hormones, vitamin D regulates reproductive processes in both men and women. Melatonin supplementation has lately been suggested as a therapeutic method in gynaecological practice. According to present research, women attempting to conceive are advised to increase their intake of whole grains, omega-3 fatty acids, fish, and soy while decreasing their intake of trans fats and red meat. A diet high in omega-3 polyunsaturated fatty acids (3-PUFA) improves fertility by improving oocyte quality, embryo implantation, and menstrual cycle function. This study focuses on the evidence from epidemiology literature supporting the relationships between essential dietary variables and female reproductive capacity.