: a crystalline vitamin C19H19N7O6 of the B complex that is required for normal production of red blood cells, is used especially in the treatment of nutritional anemias, and occurs chiefly in green leafy vegetables, liver, kidneys, dried beans, and mushrooms
called also pteroylglutamic acid
Examples of folic acid in a Sentence
Recent Examples on the Web
Changes are coming to tortillas in California in the new year, with a new law requiring manufacturers to add folic acid to corn masa products.
—
Tori Apodaca, CBS News, 30 Dec. 2025
Spinach, kale, and collards are rich in antioxidant vitamins and minerals essential for anti-aging, including beta-carotene, vitamin C, folic acid, and potassium.
—Vogue, 12 Dec. 2025
Vitek recommended all individuals trying to conceive take a daily prenatal or multivitamin with at least 400mg of folic acid.
—Daniella Gray, MSNBC Newsweek, 7 Dec. 2025
The Centers for Disease Control and Prevention estimate that fortifying grain products with folic acid already prevents more than 1,300 neural tube defects annually, saving more than $600 million per year in lifetime medical costs.
—Ed Gaskin, Boston Herald, 17 Nov. 2025
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Tori Apodaca, CBS News, 30 Dec. 2025
Spinach, kale, and collards are rich in antioxidant vitamins and minerals essential for anti-aging, including beta-carotene, vitamin C, folic acid, and potassium.
—Vogue, 12 Dec. 2025
Vitek recommended all individuals trying to conceive take a daily prenatal or multivitamin with at least 400mg of folic acid.
—Daniella Gray, MSNBC Newsweek, 7 Dec. 2025
The Centers for Disease Control and Prevention estimate that fortifying grain products with folic acid already prevents more than 1,300 neural tube defects annually, saving more than $600 million per year in lifetime medical costs.
—Ed Gaskin, Boston Herald, 17 Nov. 2025
See All Example Sentences for folic acid
Cite this Entry
“Folic acid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/folic%20acid. Accessed 6 Jan. 2026.
Copy CitationKids Definition
folic acid
noun
fo·lic acid
ˌfō-lik- 
: a crystalline vitamin of the B complex used especially in the treatment of anemia resulting from inadequate intake of nutrients
Medical Definition
folic acid
noun
fo·lic acid
ˌfō-lik-
: a crystalline vitamin C19H19N7O6 of the B complex that is required for normal production of red blood cells, that is used especially in the treatment of nutritional anemias, and that occurs especially in green leafy vegetables, liver, kidneys, dried beans, and mushrooms
called also folacin, folate, Lactobacillus casei factor, pteroylglutamic acid, vitamin Bc, vitamin M
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