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Folic Acid: Folates
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Folic acid is supplied in the diet from foods such as leafy green vegetables, liver, pulses, eggs, and wholemeal cereal products. The richest source is dried brewer's yeast (2400 micrograms of folic acid per 100 grams of yeast). It is ... made in the body by intestinal bacteria, but this folate is probably not absorbed. In the UK, the adult daily Reference Nutrient Intake is 200 micrograms; in the USA, Recommended Dietary Allowance (1989) is 180 micrograms for females and 200 micrograms for males.
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Folic acid is the synthetic form of folate, which is found naturally in some foods, including leafy vegetables, beans, citrus fruits, and whole grains. But it's best to take a prenatal vitamin containing folate in case you don't get enough from your meals. If you have severe morning sickness and can't tolerate prenatal vitamins, make sure to take a separate folic acid supplement.
Folic acid facts show that foods that are naturally rich in folates (natural forms of folic acid found in foods) include beans, peanuts, pork, salmon, tuna, liver, oranges and orange juice. There are many other foods that are rich in folic acids, consult your nutritionist for more details.
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Folic acid and [F]olate (the anion form) are forms of the water-soluble Vitamin B9. These occur naturally in food and can ... be taken as supplements. Folate gets its name from the Latin word folium ("leaf").
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Folic acid is an artificial version of folate, a B vitamin found in leafy vegetables, citrus fruit and beans. It prevents birth defects and is needed for the production of red blood cells.
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Aminopterin (4-aminopteroic acid), a 4-amino analog of folic acid, is an antineoplastic drug with immunosuppressive properties used in chemotherapy. Aminopterin is a synthetic derivative of pterin. Aminopterin works as an enzyme inhibitor by competing for the folate binding site of the enzyme dihydrofolate reductase. Its binding affinity for dihydrofolate reductase effectively blocks tetrahydrofolate synthesis. This results in the depletion of nucleotide precursors and inhibition of DNA, RNA, and protein synthesis.
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Folates