Formiminoglutamate (FIGLU) is a functional marker of insufficiency of folic acid, another B-vitamin, and is a compound made from the amino acid histidine.
Pregnant women especially need to have adequate folic acid to prevent birth defects. Folic acid insufficiency can play a role in childhood development problems, depression, immune function, and is a risk factor for cardiovascular disease.
Insufficiency of folic acid leads to high urinary Formiminoglutamate.
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