Folic acid is a type of B vitamin that is essential for numerous bodily functions. It plays a critical role in the production and maintenance of new cells, particularly during periods of rapid growth such as pregnancy and infancy. Folic acid is also important for the synthesis of DNA and RNA, the body's genetic material, and helps to prevent changes to DNA that may lead to cancer. It is commonly found in leafy green vegetables, fruits, beans, and fortified foods like cereals and bread. Adequate intake of folic acid is especially important for pregnant women, as it can help prevent major birth defects of the baby's brain and spine. Deficiency in folic acid can lead to anemia and other health issues.