Calculation: Folate mcg DFE = Folic Acid mcg x 1.7.Calculation: Folate mcg DFE = Food Folate mcg (The units are equivalent.).

Unit conversion: 1 mcg DFE = 1 mcg Folate from food.

The conversion factor depends on the source of folate.

Calculation: Niacin mg NE = Tryptophan mg / 60įolate is a voluntary nutrient whose label unit has changed from mcg to mcg DFE (Dietary Folate Equivalents).

Calculation: Niacin mg NE = Niacin mg (The units are equivalent.).

Niacin is a voluntary nutrient whose label unit has changed from mg of Niacin to mg of Niacin Equivalents (NE). Niacin Equivalents include niacin converted from the amino acid tryptophan.

Calculation: Vitamin E alpha-tocopherol mg = Vitamin E IU x 0.45.

Calculation: Vitamin E alpha-tocopherol mg = Vitamin E IU x 0.67.

The conversion factor you use depends on whether the source is natural or synthetic. Vitamin E is a voluntary nutrient whose label unit has changed from IU to mg of alpha-tocopherol. This is also the case with Vitamin E and Folate. When working with ingredients where Vitamin A comes from a combination of animal and plant sources, you may need to contact your suppliers for more detail.

Calculation: Vitamin A mcg RAE = Vitamin A IU x 0.025.

Plant source: alpha-carotene or beta-cryptoxanthin from food Plant source: beta-carotene from supplements

Calculation: Vitamin A mcg RAE = Vitamin A IU x 0.05.

Calculation: Vitamin A mcg RAE = Vitamin A IU x 0.3.

We have calculated this conversion for foods in the ESHA database where possible.įor foods that you enter yourself, you can determine the Vitamin A mcg RAE value by converting from IUs using these formulas: Animal source: pre-formed retinol The conversion from IUs to mcg RAE considers whether Vitamin A is coming from an animal source (retinol) or a plant source (carotenoids), or a combination of sources. If Vitamin A is listed on the new nutrition label it must be listed in mcg of Retinol Activity Equivalents (RAE), which is a change in unit from the pre-existing label, where Vitamin A was listed in IUs. Vitamin A was a mandatory nutrient and is now a voluntary label nutrient.

Calculation: Vitamin D mcg = Vitamin D IU x 0.025.(Vitamin D IUs may be listed voluntarily in parenthesis as well.) So, to find the number of mcg, you need to multiply your total number of IUs by 0.025. Vitamin D was a voluntary nutrient shown on the label in IUs, but is now a mandatory nutrient listed in mcg. A list of the calculations only can be found on this cheat sheet. This blog covers those revisions and gives you the formulas for calculating the changes. With the release of the new rules for Nutrition Facts Labels, some of the nutrient measurement units have been revised.

Mcg to iu vitamin d