Pregnant women's nutritional needs increase significantly to support fetal growth and development. Key nutrients include folic acid, crucial for preventing neural tube defects; iron for increased blood volume; calcium for bone health; and protein for tissue development. Additionally, adequate intake of omega-3 fatty acids is essential for brain development. Hydration is also critical, as pregnant women often need more fluids. Nutritional diversity is vital, and women are encouraged to consume a variety of whole foods to meet these increased demands. Consulting with a healthcare provider or a registered dietitian can ensure optimal dietary choices throughout pregnancy.