| 释义 |
retinol activity equivalents ret·i·nol ac·tiv·i·ty e·quiv·a·lents (RAE) (ret'i-nol ak-tiv'i-tē ē-kwiv'ă-lĕnts) A measure of vitamin A activity based on the capacity of the body to convert provitamin carotenoids containing at least one unsubstituted ionone ring to retinaldehyde. 1 microgram RAE = 1 mg retinol = 12 mg β-carotene = 24 mg other vitamin A precursor carotenoids. |