Please make appropriate changes as needed. NOAA Weather Radio (NWR) broadcasts NWS warnings, watches, forecasts and other hazard information 24 hours a day. NWR is the prime alerting and critical information delivery system of the NWS.
Intake Recommendations. Most women need 2,333 International Units, or 700 micrograms, of vitamin A each day, while men need 3,000 IU or 900 micrograms, according to the Linus Pauling Institute. Because vitamin A plays such an important role in a developing babyâs development, pregnant and breastfeeding mothers need more vitamin A -- 2,567 IU and 4,333 IU, respectively.
The Recommended Dietary Allowance for Vitamin A is shown both in micrograms (mcg) as well as International Units to account for activities associated with different forms of Vitamin A. For females 19 years and older, the requirement is 700 mcg or 2,310 IU (or international units) per day.