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Tag: Rae conversion

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How much retinol is equal to 1 IU?

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6 min read
According to the National Institutes of Health, 1 IU of retinol is equivalent to 0.3 micrograms (mcg) of Retinol Activity Equivalents (RAE). This conversion can be confusing due to variations in vitamin A forms and outdated labeling practices.

What is the beta-carotene equivalent of 1 RE of vitamin A?

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4 min read
According to the World Health Organization (WHO) and the Food and Agriculture Organization (FAO), 1 microgram (µg) of Retinol Equivalent (RE) is equal to 6 µg of dietary beta-carotene. This conversion factor helps account for the differences in how the body utilizes various forms of vitamin A, but has largely been replaced by a more modern unit of measure called Retinol Activity Equivalents (RAE).