Document Detail


Establishing safe and potentially efficacious fortification contents for folic acid and vitamin B12.
MedLine Citation:
PMID:  18709896     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Determining the micronutrient contents infortified foods depends not only on the health goal (additional intake to complement the diet), but also on ensuring that fortification does not raise micronutrient intakes beyond the Tolerable Upper Intake Level (UL), i.e., the safe limit. Technological incompatibility and cost may also restrict the fortification contents. For folic acid, the limiting factor is safety, while for vitamin B12, it is cost. However, adequate fortification contents that are both safe and efficacious can be estimated for both nutrients. In order to obtain the maximum benefit from the fortification programs, three different formulas responding to three categories of consumption, as specified by the median and 95th percentile of consumption, are proposed. The model presented is based on the estimation of a Feasible Fortification Level (FFL), which then is used to determine the average, minimum, and maximum contents of the nutrients during production, taking into consideration the acceptable variation of the fortification process. Finally, the regulatory parameters, which support standards and enforcement, are calculated by reducing the proportion of the nutrient that is degraded during the usual marketing process of the fortified food. It is expected that this model will establish a common standard for food fortification, and improve the reliability and enforcement procedures of these programs. The model was applied to flours as vehicles for folic acid in the United States, Guatemala, and Chile. Analysis of the data revealed that, with the exception of Chile, where wheat flour consumption is very high and probably within a narrow range, supplementation with folic acid is still needed to cover individuals at the low end of consumption. This is especially true when the difference in flour consumption is too wide, as in the case of Guatemala, where the proportional difference between consumption at the 95th percentile of the nonpoor group is as high as 100 times the consumption at the 5th percentile of the extremely poor group. Adoption of fortification content for staple foods near the safe limit brings together the need of restricting the voluntary addition of the specific nutrient to other foods and to dietary supplements.
Authors:
Omar Dary
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Food and nutrition bulletin     Volume:  29     ISSN:  0379-5721     ISO Abbreviation:  Food Nutr Bull     Publication Date:  2008 Jun 
Date Detail:
Created Date:  2008-08-19     Completed Date:  2008-11-10     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7906418     Medline TA:  Food Nutr Bull     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  S214-24     Citation Subset:  IM    
Affiliation:
A2Z: The USAID Micronutrient and Child Blindness Project, Academy for Educational Development, Washington, DC 20009-5721, USA. odary@aed.org
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MeSH Terms
Descriptor/Qualifier:
Chile
Consumer Product Safety*
Cost-Benefit Analysis
Dose-Response Relationship, Drug
Flour / analysis
Folic Acid / administration & dosage*,  adverse effects
Food, Fortified / adverse effects,  standards*
Guatemala
Humans
Vitamin B 12 / administration & dosage*,  adverse effects
Chemical
Reg. No./Substance:
59-30-3/Folic Acid; 68-19-9/Vitamin B 12

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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