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Finding Folate

by Cynthia M. Johnson, MA

En Español (Spanish Version)

folate in fortified cerealFolate is a B vitamin. It is also called folic acid. Folate is stored in the body in very small amounts and leaves the body through the urine. Getting enough folate in your diet is a good thing. Folate is a key vitamin, especially before and during pregnancy. Not getting enough during this time can lead to birth defects in babies.

What Folate Does    TOP

Folate plays a role in:

  • Helping the body break down and use the amino acids that make up proteins
  • Making new cells and keeping them healthy
  • Making DNA and RNA, the building blocks of cells
  • Blocking changes to DNA that may lead to cancer
  • Making red blood cells and preventing low levels of red blood cells called anemia
  • Helping to make chemicals that affect sleep, pain, and mood

Recommended Intake:    TOP

Age Group (in Years)Recommended Dietary Allowance
FemalesMales
1 - 3150 mcg150 mcg
4 - 8200 mcg200 mcg
9 - 13300 mcg300 mcg
14 - 18400 mcg400 mcg
Pregnancy, 14 - 18600 mcgn/a
Lactation, 14 - 18500 mcgn/a
19+400 mcg400 mcg
Pregnancy, 19+600 mcgn/a
Lactation, 19+500 mcgn/a

mcg=microgram

Too Little Folate    TOP

Folate deficiency (too little folate) is common. It can happen for a number of reasons, like:

  • Higher need, as with pregnancy
  • Not eating enough foods with folate
  • Very high levels of folate passing out of the body
  • Medicine that makes it hard for the body to use folate, such as anti-seizure medicine

Groups at Risk of Having Too Little Folate

These groups may be at risk of having too little folate and may need a supplement:

  • Pregnant women: Folate plays a big role in the making and upkeep of new cells.
  • People who drink too much alcohol: Alcohol makes it hard for the body to absorb folate. It also makes the kidneys get rid of folate too quickly. Also, people who drink too much tend to have diets low in folate.
  • People on certain medicine: Some medicine can make it hard for the body to use folate.
  • People with inflammatory bowel diseases: These can make it hard for the body to absorb folate.
  • Older adults: Many older adults have low blood levels of folate. This can be because they do not get enough in their diet or because their body cannot absorb it.

How Low Folate Can Affect Your Health    TOP

Low folate may lead to:

  • Headache
  • Diarrhea
  • Weakness
  • Lack of hunger and weight loss
  • Memory problems
  • Tongue soreness or swelling
  • Mood problems
  • Fast or irregular heartbeat
  • Megaloblastic anemia (red blood cells that are very large)
  • Believing things that are not based on reality

Birth Defects

The risk of birth defects is lower in people who get enough folate before and just after getting pregnant. Many women do not yet know they are pregnant during this time. For this reason, all women of childbearing age should make sure they get at least 400 mcg per day.

Major Food Sources    TOP

Many types of foods have folate. It is also added to some foods, like cereal, rice, and flour. Here is a list of major food sources and their folate content.

FoodServing Size Folate Content
(mcg)
Fortified breakfast cereal3/4 cup 100-400
(check Nutrition Facts label)
Soy flour1 cup260
Beef liver3 ounces215
Chickpeas1 cup282
Spinach1 cup262
Lima beans1 cup156
Papaya, raw1 cup54
Avocado1 cup122
Wheat germ2 tablespoons40
Asparagus1 cup268
Orange juice, fresh¾ cup35
Spinach,1 cup58
Green peas1/2 cup47
White rice, medium-grain 1 cup90
Orange, navel1 small29
Broccoli1 cup104
Peanuts1 ounce41
Tomatoes1 cup32
Tomato juice1 cup49
Peanut butter, crunchy2 tablespoons30
Banana1 medium24
Cashews1 ounce20
Enriched bread1 slice84

Tips to Raise Your Intake    TOP

To help get more folate:

  • Spread a little avocado on your sandwich in place of mayo.
  • Drink a glass of orange juice or tomato juice.
  • Add spinach to your scrambled eggs.
  • Slice a banana on top of your cereal.
  • Sprinkle some toasted wheat germ on top of pasta or a stir-fry.
  • Throw some chickpeas or kidney beans into a salad.
  • Make sure your vitamin contains folate.

Too Much Folate    TOP

There can be too much of a good thing. There is no upper limit for taking in folate found naturally in foods. However, there are recommended limits for the amount of folate you get from fortified foods and supplements:

AgeMicrograms (mcg) per day
1 to 3 years300 mcg
4 to 8 years400 mcg
9 to 13 years600 mcg
14 to 18 years800 mcg
Pregnant or nursing women up to 18 years800 mcg
19 years and older1,000 mcg
Pregnant or nursing women 19 years and older1,000 mcg

Large doses of folate can make it hard to spot symptoms of low vitamin B12 (B12 deficiency). This can look a lot like having too little folate. But too little B12 can also cause damage to the nervous system. Folate supplements will help the symptoms of anemia caused by too little vitamin B12, but they will not stop damage to the nervous system. A blood test will help find out if your folate and vitamin B12 levels are low. You may need to take vitamin B12 supplements along with the folate. Talk to your doctor before you take any supplement.

RESOURCES:

Choose My Plate—US Department of Agriculture
http://choosemyplate.gov

Eat Right—Academy of Nutrition and Dietetics
http://www.eatright.org

CANADIAN RESOURCES:

Dietitians of Canada
http://www.dietitians.ca

Health Canada
http://www.canada.ca

REFERENCES:

Folate. Linus Pauling Institute Oregon State University. Available at:
...(Click grey area to select URL)
Accessed June 10, 2021.

Folate. Office of Dietary Supplements, National Institutes of Health website. Available at: https://ods.od.nih.gov/factsheets/Folate-HealthProfessional. Accessed June 10, 2021.

Folate deficiency. EBSCO DynaMed website. Available at: https://www.dynamed.com/condition/folate-deficiency. Accessed June 10, 2021.

Folate, DFE (µg) content of selected foods per common measure, sorted by nutrient content. USDA national nutritional database for standard reference, release 28. US Department of Agriculture website. Available at: https://fdc.nal.usda.gov/docs/Foundation_Foods_Documentation_Apr2021.pdf. Accessed June 10, 2021.

Folic acid. EBSCO DynaMed website. Available at: https://www.dynamed.com/drug-monograph/folic-acid. Accessed June 10, 2021.



Last reviewed June 2021 by EBSCO Medical Review Board
Last Updated: 6/10/2021

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