(Retinol Activity Equivalent) The amount of retinol, alpha-carotene, beta-carotene, or beta-cryptoxanthin that must be consumed to equal 1 mcg of retinol.

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Human Nutrition [DEPRECATED] by University of Hawai’i at Mānoa Food Science and Human Nutrition Program is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License, except where otherwise noted.