title: Trends in serum folate after food fortification.
abstract: From 1994 to 1998, median serum folate values in clinical specimens increased from 12.6 to 18.7 microg/L. The percentage of low values decreased. Food fortification with folic acid is a likely explanation.
authors.forename: J M
authors.initials: JM
authors.lastname: Lawrence
authors.forename: D B
authors.initials: DB
authors.lastname: Petitti
authors.forename: M
authors.initials: M
authors.lastname: Watkins
authors.forename: M A
authors.initials: MA
authors.lastname: Umekubo
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002140:California / Q000453:epidemiology; D002648:Child; D002675:Child, Preschool; D002523:Edible Grain; D005260:Female; D005492:Folic Acid / Q000097:blood*; D005494:Folic Acid Deficiency / Q000097:blood / Q000453:epidemiology / Q000517:prevention & control*; D005527:Food, Fortified; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D014481:United States; D014486:United States Food and Drug Administration
chemical_list: D005492:Folic Acid