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Folic acid deficiency is a condition in which the body does not have enough folic acid. Folic acid is a B vitamin that is important for the production of red blood cells and for the proper functioning of the nervous system. Folic acid deficiency can lead to anemia, fatigue, weakness, irritability, and difficulty concentrating. It can also increase the risk of certain birth defects. Folic acid deficiency can be caused by inadequate dietary intake, malabsorption, certain medications, and certain medical conditions. Treatment typically involves taking a folic acid supplement and eating foods that are rich in folic acid.
All of the following must be considered when interpreting clinical findings and are too extensive to be covered on this site: