How much folic acid for pregnant women

Folic Acid | CDC

CDC urges all women of reproductive age to take 400 micrograms (mcg) of folic acid each day, in addition to consuming food with folate from a varied diet, to help prevent some major birth defects of the baby’s brain (anencephaly) and spine (spina bifida).

About folic acid

Folic acid is a B vitamin. Our bodies use it to make new cells. Think about the skin, hair, and nails. These–and other parts of the body – make new cells each day. Folic acid is the synthetic (that is, not generally occurring naturally) form of folate used in supplements and in fortified foods such as rice, pasta, bread, and some breakfast cereals

Why folic acid is important before and during pregnancy

When the baby is developing early during pregnancy, folic acid helps form the neural tube. Folic acid is very important because it can help prevent some major birth defects of the baby’s brain (anencephaly) and spine (spina bifida). The neural tube forms the early brain and spine.

Women of reproductive age need 400 mcg of folic acid every day

All women of reproductive age should get 400 mcg of folic acid every day to get enough folic acid to help prevent some birth defects because
- About half of U.S. pregnancies are unplanned, and
- Major birth defects of the baby’s brain or spine occur very early in pregnancy (3-4 weeks after conception), before most women know they are pregnant.

When taking folic acid, a higher dose than 400 mcg of folic acid each day is not necessarily better to prevent neural tube defects, unless a doctor recommends taking more due to other health conditions.
- When planning to become pregnant, women who have already had a pregnancy affected by a neural tube defect should consult with their healthcare provider. CDC recommends that these women consume 4,000 mcg of folic acid each day one month before becoming pregnant and through the first 3 months of pregnancy.

Learn more about CDC’s folic acid recommendations here.
Learn more about the recommended intake level of folic acid here.

When to start taking folic acid

Every woman of reproductive age needs to get folic acid every day, whether she is planning to get pregnant or not, to help make new cells.

Are folate and folic acid the same thing?

The terms “folate” and “folic acid” are often used interchangeably, even though they are different. Folate is a general term to describe many different types of vitamin B9.

Types of folate can include

Dihydrofolate (DHF)
Tetrahydrofolate (THF)
5, 10-methylenetetrahydrofolate (5, 10-Methylene-THF)
5-methyltetrahydrofolate (5-Methyl-THF or 5-MTHF)

Food fortification is a way to add vitamins or minerals, or both, to foods. Some rice, pasta, bread, and breakfast cereals are fortified with folic acid. These foods are labeled “enriched.” Folic acid is a specific type of folate that does not generally occur naturally.

Folic acid is the ideal form of folate to use for food fortification. It is more stable than types of natural food folate, which can easily be broken down by heat and light. Folic acid is better suited for food fortification because many fortified products, such as bread and pasta, are cooked.⁶

CDC recommends that women of reproductive age who could become pregnant consume at least 400 micrograms (mcg) of folic acid every day. However, it’s difficult to get 400 mcg of folic acid through diet alone. You can get 400 mcg of folic acid each day by taking a vitamin with folic acid in it, eating fortified foods, or a combination of the two, in addition to consuming a balanced diet rich in natural food folate.

How to get enough folic acid to prevent neural tube defects

In addition to eating foods with folate from a varied diet, women can get folic acid from

Taking a vitamin that has folic acid in it:
- Most vitamins sold in the United States have the recommended daily amount of folic acid (400 mcg) that women need for the prevention of neural tube defects. Vitamins can be found at most local pharmacy, grocery, or discount stores.
Eating fortified foods:
- You can find folic acid in some breads, breakfast cereals, and corn masa flour.
Getting a combination of the two: taking a vitamin that has folic acid in it and eating fortified foods.

If taking folic acid for reasons other than neural tube defect prevention, talk to your healthcare provider.

Learn more about where to find folic acid in the United States here.

More Information

For more information, visit the Frequently Asked Questions page.

You can also contact CDC-INFO in English or Spanish:

1-800-CDC-INFO (800-232-4636)
TTY: 1-888-232-6348
In English
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Folic Acid and Pregnancy: How Much You’ll Need

Folic acid is a B vitamin found in many supplements and fortified foods. It’s the synthetic form of folate. Folic acid is used by your body to make new cells and produce DNA. It’s required for normal growth and development throughout your life.

Taking folic acid is particularly vital before and during pregnancy. It’s important for the proper organ development of a developing baby.

Research shows that taking folic acid before you get pregnant may help prevent birth defects including serious neural tube defects such as spina bifida, encephalocele (rarely), and anencephaly.

Approximately 3,000 babies are born with neural tube defects in the United States each year. Normally, the neural tube develops into the spinal cord and brain by 28 days after conception.

If the neural tube doesn’t close properly, neural tube defects occur. Anencephaly is a condition in which the brain doesn’t develop properly. Babies born with anencephaly cannot survive.

Babies born with spina bifida or encephalocele may face multiple surgeries, paralysis, and long-term disability.

According to a 2015 review of studies, maternal folic acid supplementation significantly decreases the risk of congenital heart defects. These defects occur in 8 out of every 1,000 births in the United States.

According to the American Heart Association, congenital heart defects happen when the heart or blood vessels don’t grow normally before birth. They may impact the interior walls of the heart, the heart valves, or the arteries and veins of the heart.

Research also shows folic acid supplementation in early pregnancy may help prevent cleft lip and cleft palate.

These birth defects occur if parts of the mouth and lip do not merge together properly during the first 6 to 10 weeks of pregnancy. One or more surgeries are usually needed to correct the condition.

All pregnant women should take get at least 600 micrograms (mcg) of folic acid daily, according to The American College of Obstetricians and Gynecologists. Most prenatal vitamins contain this amount of folic acid.

Taking folic acid after you discover you’re pregnant may not be soon enough. Many women don’t realize they’re pregnant until 6 weeks or more after conception. Neural tube defects occur during the first month of pregnancy, often before you realize you’re pregnant.

To make sure you have enough folic acid in your body to prevent neural tube defects, the CDC recommends women who plan to become pregnant or who are of childbearing age take 400 mcg of folic acid daily.

If you’ve already given birth to a child with a neural tube defect, you may need higher doses of folic acid in the months leading up to your next pregnancy and during the first few months of pregnancy. Your doctor can advise you on the right dose.

You may also need higher doses of folic acid if you:

have kidney disease and are on dialysis
have sickle cell disease
have liver disease
drink more than one alcoholic beverage daily
take medications to treat epilepsy, type 2 diabetes, lupus, psoriasis, rheumatoid arthritis, asthma, or inflammatory bowel disease

Natural folate is found in many foods including leafy greens, beets, and broccoli. Some foods in the United States are fortified with folic acid. These include:

cereals
rice
orange juice
pasta

Many servings of fortified breakfast cereals contain 100 percent of the folic acid you need. Even so, it may be hard to know exactly how much you’re getting unless you track the amounts of folate and folic acid in everything you eat.

There’s no guarantee that you will get enough folic acid from food alone, so a supplement is important.

If you have morning sickness in early pregnancy, it may be difficult to eat enough fortified foods to get the folic acid you need.

To make sure you get enough folic acid, doctors will usually recommend taking a folic acid supplement or a prenatal vitamin that contains folic acid before and during pregnancy.

You can’t get too much natural folate from foods. However, you should not consume more than 1,000 mcg (1 mg) of folic acid (from vitamins, fortified foods, or a combination of both) daily.

There’s no way to prevent all birth defects with 100 percent certainty. Taking adequate amounts of folic acid before and during pregnancy may help decrease your risk of:

neural tube defects
congenital heart defects
cleft palate
cleft lip

If pregnancy is in your future, consider adding a prenatal vitamin to your daily routine. Prenatal vitamins are available in capsule, tablet, and chewable forms. To avoid stomach upset, take prenatal vitamins with food.

Always talk to your doctor about taking the correct dose of prenatal vitamin because taking too many supplements can be toxic for your baby-to-be.

You should also add foods fortified with folic acid to your diet. Don’t wait until you find out you’re pregnant to get serious about folic acid. By then, it may be too late. Talk to your doctor to determine the right amount of folic acid you’ll need.

Folic acid for pregnancy planning

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home » About clinic » Folic acid when planning pregnancy

Any woman who plans to soon become pregnant and become a mother should consciously and carefully prepare for this new status. And if everyone knows about a healthy lifestyle, parting with bad habits and walking in the fresh air, then expectant mothers often ignore the intake of certain vitamins and medicines before pregnancy. One such remedy is folic acid.

What is folic acid?

Folic acid is vitamin B9. Often you can hear the generalized name - folates, they are derivatives of this vitamin. We must understand that we get them from food, and folic acid tablets are a synthetic agent that is already converted into folates inside the body. nine0003

All derivatives of vitamin B9 play an important role in hematopoiesis, that is, the formation of new blood cells. Therefore, the lack of these substances leads to anemia - a condition in which there are not enough red blood cells, or they are irregular in shape and do not perform their functions. Folates have another very important feature: they stimulate the formation of nucleic acids (DNA and RNA), which are the basis of all body cells. Therefore, it is folic acid that is necessary for all rapidly dividing human tissues, including embryonic tissues. nine0003

The role of folic acid:

participates in the formation of DNA in all cells, that is, the source of hereditary information;
stimulates hematopoiesis;
indirectly blocks the formation of cancer cells;
restores muscle tissue;
during pregnancy: plays a role in the laying and development of the nervous tissue of the embryo, participates in the formation of placental vessels.

Why do you need folate during pregnancy? nine0017

During pregnancy, especially in the early stages, the consumption of folate increases dramatically. All cells of the embryo are intensively dividing in order to eventually form full-fledged tissues. The nervous tissue of the future man is transformed especially quickly and difficultly. And it is she who requires a large amount of folic acid.

Folic acid deficiency during pregnancy can occur due to the following reasons:

Insufficient intake of folate from food.
Genetic disorders of the folate cycle. In rare cases, a woman's body lacks the necessary enzymes (MTHFR). As a result, folic acid is not converted to folates, and they do not perform the necessary functions. Intermediate metabolic products accumulate in the body, which can lead to cardiovascular diseases, tumor processes, infertility and miscarriage. In the presence of such a mutation, it is recommended to take folic acid derivatives, for example, Metafolin. It is absorbed faster and in greater volume. nine0028
Taking certain anti-epilepsy drugs and hormonal drugs dramatically reduces blood folate levels:

oral contraceptives;
barbiturates, diphenylhydantoin;
sulfa drugs (for example, biseptol), which inhibit the synthesis of vitamin B9 by the intestinal microflora;
drinking alcohol also lowers their levels.

At what stage of pregnancy should I take folic acid supplements? nine0017

Folic acid intake to prevent fetal malformations should be started already at the stage of preparation for pregnancy, at least three months before the intended conception. That is why pregnancy should be planned. If conception occurred unexpectedly, then you need to start taking the drug as soon as it became known.

Reasons for taking folates at the stage of pregnancy planning:

If a woman has an unbalanced diet, her folic acid level can be low, so it takes time to replenish her reserves. It usually takes three to four months. nine0028
The neural tube of the fetus is laid at such an early stage that a woman may not even be aware of the pregnancy, especially with a long menstrual cycle.
Folate deficiency can make pregnancy difficult.

Doctors of the Intime Family Planning Clinic give the following recommendations for taking folic acid: in most cases, three months before conception and throughout pregnancy, you need to take 400 micrograms of folic acid per day. In some cases, the dosage is advised to increase: up to 1 mg per day for epilepsy and diabetes; up to 4 mg per day if there have been children with neural tube defects in the past Increased doses of folates can only be prescribed by a doctor after a thorough examination. The dose of folic acid during pregnancy remains the same. nine0003

We wish you an easy pregnancy and healthy babies!

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Folic acid overdose during pregnancy

06/13/2022

Folic acid intake is very important during pregnancy because the vitamin is partly responsible for the healthy development of your unborn baby. But are pregnant women at risk of overdosing on folic acid if, for example, they take multiple products that contain it? nine0003

What is folic acid?

Many animal and plant foods contain water-soluble B vitamins, including folic acid. Folate can also be produced synthetically, in which case one speaks of folic acid (or vitamin B9). It supports hematopoiesis and growth of the placenta, is involved in cell division and regeneration. In addition, folic acid is partly responsible for the fact that the neural tube from which the central nervous system arises is developing correctly.

How much folic acid should pregnant women take?

Adults should consume about 300 micrograms of folic acid per day. Pregnant women need significantly more - from 550 to 800 mcg per day. However, since only about 180 micrograms are absorbed with food, the rest should be taken as tablets. In the first trimester of pregnancies, women require a particularly large amount of this vitamin (800 mcg). Starting from the fourth month, only 400 mcg is enough. nine0003

Ideally, folic acid should be started four weeks before conception is possible. But if pregnancy was a surprise, it is recommended to receive 800 micrograms of folic acid daily so that a sufficient amount of folic acid is quickly reached in blood .

Is it possible to overdose on folic acid?

While excess natural folate is simply excreted from the body, folic acid overdose is not uncommon. Nutritional supplements for pregnant women typically contain 800 micrograms of B9, and any additional drug that also has this vitamin in its composition will definitely lead to an excess of the recommended dose.

Some foods such as muesli, flour, cereal bars, drinks and table salt are partially fortified with folic acid.

What are the consequences of an overdose of folic acid?

In general, side effects from B9 overdoses of more than 1000 micrograms per day are very rare but cannot be ruled out. Short-term overdose may result in the following symptoms in pregnant women:

nausea ;
gastrointestinal complaints;
sleep disorders;
excited state.

In the long term these side effects can cause nightmares, depression and epileptic seizures. The oncogenic effects of this vitamin are not excluded.

Studies have shown that folate overdose may be associated with the following conditions in infants: