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Related Experiment Videos

Dietary folate equivalents: interpretation and application.

C W Suitor1, L B Bailey

  • 1Food Science and Human Nutrition Department, University of Florida, Gainesville 32611, USA.

Journal of the American Dietetic Association
|January 26, 2000
PubMed
Summary

Dietary folate equivalents (DFEs) account for folate absorption differences. New calculations help professionals assess diets with fortified foods, like enriched grains, for adequate folate intake.

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Area of Science:

  • Nutrition Science
  • Dietary Assessment

Background:

  • Dietary Reference Intakes (DRIs) established Recommended Dietary Allowances (RDAs) for folate in 1998.
  • Dietary folate equivalents (DFEs) were introduced to account for differing bioavailability between food folate and synthetic folic acid.
  • US FDA regulations mandated folic acid fortification in enriched cereal grains, impacting hundreds of food products.

Purpose of the Study:

  • To assist dietetics professionals in planning and evaluating diets containing enriched cereal grain products.
  • To estimate the dietary folate equivalent content of various foods.

Main Methods:

  • Utilized data from the US Department of Agriculture (USDA) for food folate content.
  • Calculated dietary folate equivalents (DFEs) considering both naturally occurring food folate and added folic acid in fortified foods.

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  • Grouped foods based on their estimated DFE content.

    • Main Results:

    • Provided estimated dietary folate equivalent (DFE) values for a selection of foods.
    • The calculations incorporated the 1.7 times higher bioavailability of synthetic folic acid compared to food folate.
    • Food items were categorized according to their DFE content for practical application.

    Conclusions:

    • Dietary folate equivalents (DFEs) are crucial for accurately assessing folate intake adequacy.
    • The updated understanding of folate bioavailability is essential for public health nutrition.
    • Professionals can use these estimations to guide dietary planning for populations consuming fortified foods.