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establishing the RDA for Vitamin E: The below table outlines helpful information for understanding and converting Vitamin E per NLEA regulations: IU to mg x 0.671
180 mg vitamin E at dl-alpha / 0.45 = 400 IU vitamin E. If it’s a naturally-sourced vitamin E, you will see it called “d-alpha.” If you see “d-alpha” on the label, just multiply the IU by 0.67. For example:
I. Introduction. This guidance document provides step-by-step instructions to manufacturers of retail food products marketed in the United States on how they may convert the previous units of...
Vitamin A in µg RAE can only be directly converted into IUs if the sources of vitamin A are known. 1 µg RAE = 1 µg retinol and 1 µg RAE = 2 µg supplemental beta-carotene. Vitamin E
The information below provides an approximate vitamin conversion from standardized units (IU, RAE, DFE, NE) to milligrams or micrograms. Vitamin A 1 IU = 0.3 mcg retinol
vitamin E = 1 mg d-alpha-tocopherol (natural vitamin E) = 2 mg dl-alpha-tocopherol (synthetic vitamin E). Some food and dietary supplement labels still list vitamin E in International Units (IUs) rather than mg. 1 IU of the natural form of vitamin E is equivalent to 0.67 mg. 1 IU of the synthetic form of vitamin E is equivalent to 0.45 mg. Some ...
The chart below provides conversion factors and a quick reference to compare previous and updated equivalent values. Previous Value. Updated Equivalent. To convert from IU of vitamin A or beta-carotene to mcg RAE (Retinol Activity Equivalents), multiply by 0.3. 3,000 IU. 900 mcg.
