Folic acid

Folic acid is B vitamin that every cell in your body needs for normal growth and development. It helps your body make red blood cells that carry oxygen from your lungs to all parts of your body. 

If you take folic acid before and during early pregnancy, it can help prevent birth defects of the brain and spine called neural tube defects (also called NTDs). Some studies show that it also may help prevent heart defects in a baby and birth defects in a baby’s mouth called cleft lip and palate

Here are the top things you need to know about folic acid:

  • Taking folic acid before and during early pregnancy can help prevent NTDs in your baby.  
  • Before pregnancy, take a multivitamin that has 400 micrograms of folic acid in it every day.
  • During pregnancy, take a prenatal vitamin that has 600 micrograms of folic acid in it every day. 
  • Take a multivitamin with folic acid every day, even if you’re not trying to get pregnant.

Why is it important to take folic acid before pregnancy?

Taking folic acid before pregnancy can help prevent NTDs in your baby. The neural tube is the part of a developing baby that becomes the brain and spinal cord. NTDs happen in the first month of pregnancy, before you may know that you’re pregnant. This is why it’s important that you have enough folic acid in your body before you get pregnant. 

Because nearly half of all pregnancies in the United States are unplanned, all women should take folic acid every day. Take a multivitamin with 400 micrograms of folic acid every day, even if you’re not trying to get pregnant. 

NTDs affect about 3,000 pregnancies each year in the United States. If all women take 400 micrograms of folic acid every day before getting pregnant and during early pregnancy, it may help prevent up to 7 in 10 (70 percent) NTDs. 

How can you get folic acid? 

Before pregnancy, take a multivitamin that has 400 micrograms of folic acid in it every day. Most multivitamins have this amount, but check the label to be sure. 

During pregnancy, take a prenatal vitamin each day that has 600 micrograms of folic acid in it. You need more folic acid during pregnancy to help your baby grow and develop. Your health care provider can prescribe a prenatal vitamin for you. Or you can get prenatal vitamins over the counter without a prescription. 

You also can get folic acid from food. Some foods have folic acid added to them. Look for the word “fortified” or “enriched” on the package label to know if it has added folic acid. Foods with added folic acid include:

  • Bread
  • Breakfast cereal
  • Cornmeal
  • Flour
  • Pasta
  • Products made from a kind of flour called corn masa, like tortillas, tortilla chips, taco shells, tamales and pupusas
  • White rice

Some fruits and vegetables are good sources of folic acid. When folic acid is naturally in a food, it’s called folate. Foods that are good sources of folate are:

  • Beans, like lentils, pinto beans and black beans
  • Leafy green vegetables, like spinach and Romaine lettuce
  • Asparagus 
  • Broccoli
  • Peanuts (But don’t eat them if you have a peanut allergy.) 
  • Citrus fruits, like oranges and grapefruit
  • Orange juice (From concentrate is best.) 

It’s hard to get all the folic acid you need from food. So even if you eat foods that have folic acid in them, take your multivitamin each day, too.

Do some women need extra folic acid?

Yes. Most women don’t need more than 1,000 micrograms of folic acid each day, but some may need more. Talk to your provider to make sure you take the right amount. You may need extra folic acid before and during pregnancy if:

  • You’ve had a pregnancy affected by an NTD in the past.
  • You have diabetes. This is a medical condition in which your body has too much sugar (called glucose) in your blood.
  • You’re obese. This means you have an excess amount of body fat and your body mass index (also called BMI) is 30 or higher. To find out your BMI, go to www.cdc.gov/bmi.
  • You have a hemoglobin disorder, like sickle cell disease. Hemoglobin disorders are rare blood conditions that are caused by problems with hemoglobin. Hemoglobin is a protein in the blood that carries oxygen. 
  • You take antiseizure medicine.

More information

Centers for Disease Control and Prevention (CDC)
CDC Show Your Love Campaign

Last reviewed: April, 2016

Folic acid is B vitamin that every cell in your body needs for normal growth and development. It helps your body make red blood cells that carry oxygen from your lungs to all parts of your body. 

If you take folic acid before and during early pregnancy, it can help prevent birth defects of the brain and spine called neural tube defects (also called NTDs). Some studies show that it also may help prevent heart defects in a baby and birth defects in a baby’s mouth called cleft lip and palate

Here are the top things you need to know about folic acid:

  • Taking folic acid before and during early pregnancy can help prevent NTDs in your baby.  
  • Before pregnancy, take a multivitamin that has 400 micrograms of folic acid in it every day.
  • During pregnancy, take a prenatal vitamin that has 600 micrograms of folic acid in it every day. 
  • Take a multivitamin with folic acid every day, even if you’re not trying to get pregnant.

Why is it important to take folic acid before pregnancy?

Taking folic acid before pregnancy can help prevent NTDs in your baby. The neural tube is the part of a developing baby that becomes the brain and spinal cord. NTDs happen in the first month of pregnancy, before you may know that you’re pregnant. This is why it’s important that you have enough folic acid in your body before you get pregnant. 

Because nearly half of all pregnancies in the United States are unplanned, all women should take folic acid every day. Take a multivitamin with 400 micrograms of folic acid every day, even if you’re not trying to get pregnant. 

NTDs affect about 3,000 pregnancies each year in the United States. If all women take 400 micrograms of folic acid every day before getting pregnant and during early pregnancy, it may help prevent up to 7 in 10 (70 percent) NTDs. 

How can you get folic acid? 

Before pregnancy, take a multivitamin that has 400 micrograms of folic acid in it every day. Most multivitamins have this amount, but check the label to be sure. 

During pregnancy, take a prenatal vitamin each day that has 600 micrograms of folic acid in it. You need more folic acid during pregnancy to help your baby grow and develop. Your health care provider can prescribe a prenatal vitamin for you. Or you can get prenatal vitamins over the counter without a prescription. 

You also can get folic acid from food. Some foods have folic acid added to them. Look for the word “fortified” or “enriched” on the package label to know if it has added folic acid. Foods with added folic acid include:

  • Bread
  • Breakfast cereal
  • Cornmeal
  • Flour
  • Pasta
  • Products made from a kind of flour called corn masa, like tortillas, tortilla chips, taco shells, tamales and pupusas
  • White rice

Some fruits and vegetables are good sources of folic acid. When folic acid is naturally in a food, it’s called folate. Foods that are good sources of folate are:

  • Beans, like lentils, pinto beans and black beans
  • Leafy green vegetables, like spinach and Romaine lettuce
  • Asparagus 
  • Broccoli
  • Peanuts (But don’t eat them if you have a peanut allergy.) 
  • Citrus fruits, like oranges and grapefruit
  • Orange juice (From concentrate is best.) 

It’s hard to get all the folic acid you need from food. So even if you eat foods that have folic acid in them, take your multivitamin each day, too.

Do some women need extra folic acid?

Yes. Most women don’t need more than 1,000 micrograms of folic acid each day, but some may need more. Talk to your provider to make sure you take the right amount. You may need extra folic acid before and during pregnancy if:

  • You’ve had a pregnancy affected by an NTD in the past.
  • You have diabetes. This is a medical condition in which your body has too much sugar (called glucose) in your blood.
  • You’re obese. This means you have an excess amount of body fat and your body mass index (also called BMI) is 30 or higher. To find out your BMI, go to www.cdc.gov/bmi.
  • You have a hemoglobin disorder, like sickle cell disease. Hemoglobin disorders are rare blood conditions that are caused by problems with hemoglobin. Hemoglobin is a protein in the blood that carries oxygen. 
  • You take antiseizure medicine.

More information

Centers for Disease Control and Prevention (CDC)
CDC Show Your Love Campaign

Last reviewed: April, 2016