Folate deficiency means you have a lower than normal amount of folic acid, a type of B vitamin, in your blood.
Deficiency - folic acid, Folic acid deficiency
Folic acid works with vitamin B12 and vitamin C to help the body break down, use, and make new proteins. The vitamin helps form red blood cells. It also helps produce DNA, the building block of the human body, which carries genetic information.
Folic acid is water-soluble type of B vitamin. This means it is not stored in the fat tissues of the body. Leftover amounts of the vitamin leave the body through the urine.
Because folate is not stored in the body in large amounts, your blood levels will get low after only a few weeks of eating a diet low in folate. Folate is found in green leafy vegetables and liver.
Pregnant women need to get enough folic acid. The vitamin is important to the growth of the fetus’ spinal cord and brain. Folic acid deficiency can cause severe birth defects known as neural tube defects.
The best way to get vitamins your body needs is to eat a balanced diet. Most people in the United States eat enough folic acid because it is plentiful in the food supply.
Folate occurs naturally in the following foods:
Beans and legumes
Citrus fruits and juices
Dark green leafy vegetables
Poultry, pork, and shellfish
Wheat bran and other whole grains
The Institute of Medicine's Food and Nutrition Board recommends that adults get 400 micrograms of folate daily. Women who could become pregnant should take folic acid supplements to ensure that they get enough each day.
Specific recommendations depend on a person's age, gender, and other factors (such as pregnancy). Many foods now have extra folic acid added to help prevent birth defects.
Antony AC. Megaloblastic anemias. In: Hoffman R, Benz EJ Jr, Silberstein LE, Heslop HE, Weitz JI, eds. Hematology: Basic Principles and Practice. 6th ed. Philadelphia, Pa: Saunders Elsevier; 2012:chap 37.
Todd Gersten, MD, Hematology/Oncology, Florida Cancer Specialists & Research Institute, Wellington, FL. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Bethanne Black, and the A.D.A.M. Editorial team.