<P> Folic acid used in fortified foods is a synthetic form called pteroylmonoglutamate . It is in its oxidized state and contains only one conjugated glutamate residue . Folic acid therefore enters via a different carrier system from naturally occurring folate , and this may have different effects on folate binding proteins and its transporters . Folic acid has a higher bioavailability than natural folates and are rapidly absorbed across the intestine ; therefore , it is important to consider the Dietary Folate Equivalent ( DFE ) when calculating one 's intake . Natural occurring folate is equal to 1 DFE ; , however , 0.6 μg of folic acid is equal to 1 DFE . </P>
<P> Folic acid used in fortified foods is a synthetic form called pteroylmonoglutamate . It is in its oxidized state and contains only one conjugated glutamate residue . Folic acid therefore enters via a different carrier system from naturally occurring folate , and this may have different effects on folate binding proteins and its transporters . Folic acid has a higher bioavailability than natural folates and are rapidly absorbed across the intestine ; therefore , it is important to consider the Dietary Folate Equivalent ( DFE ) when calculating one 's intake . Natural occurring folate is equal to 1 DFE ; , however , 0.6 μg of folic acid is equal to 1 DFE . </P>
where is folic acid absorbed in the body
where is folic acid absorbed in the body
intestine
intestine