dietary folate equivalents

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dietary folate equivalents (DFE) Method for calculating folic acid intake taking into account the lower availability of mixed folates in food compared with synthetic tetrahydrofolate used in food enrichment and supplements. 1 μg DFE = 1 μg food folate or 0.6 μg synthetic folate; total DFE = μg food folate + 1.7 times μg synthetic folate.