There is a critical need to estimate dietary folate intakes for nutrition monitoring and food safety evaluations, but available intake data are seriously limited by several factors.
Our objective was to update 2 national food consumption surveys to reflect folate intakes as a result of the recently initiated food fortification program and to correct folate intakes for the apparently higher bioavailability of synthetic folic acid (SFA ; ie, folate added to foods or from dietary supplements) than of naturally occurring folate so as to express intakes as dietary folate equivalents.
It was not possible to chemically analyze foods, so adjustments were made to food-composition data by using information about food ingredients and characteristics.
Total folate intakes were estimated for several sex and age groups by using the modified data coupled with dietary supplement use.
Within the limitations of the data, our findings suggested that 67-95% of the population met or surpassed the new estimated average requirement, depending on the sex and age group and survey.
Nonetheless, some subgroups had estimated intakes below these standards.
Estimated SFA intakes suggested that 15-25% of children aged 1-8 y, depending on the survey, had intakes above the newly established tolerable upper intake level. (...)
Mots-clés Pascal : Folate, Consommation alimentaire, Produit alimentaire enrichi, Biodisponibilité, Supplémentation, Epidémiologie, Etats Unis, Amérique du Nord, Amérique, Acide folique, Alimentation, Comportement alimentaire, Homme, Age
Mots-clés Pascal anglais : Folate, Food intake, Fortified product, Bioavailability, Supplementation, Epidemiology, United States, North America, America, Folic acid, Feeding, Feeding behavior, Human, Age
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 99-0508061
Code Inist : 002B29B. Création : 22/03/2000.