Folate, also known as vitamin B9, plays an important role in many bodily functions like cell repair and DNA synthesis. Good dietary sources include green leafy vegetables, bananas, oranges, and legumes. A daily intake of 400 micrograms is recommended to prevent deficiency symptoms like fatigue and mouth sores. Folate deficiency can cause anemia, but supplements can help correct levels. It provides many health benefits like reducing cancer and heart disease risk and supporting pregnancy.