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.
For those 71 years or older, the RDA is 20 Î¼g per day (800 IU per day). For infants, the IOM could not determine an RDA due to a lack of data. However, the IOM set an Adequate Intake level of 10 Î¼g per day (400 IU per day), which should provide sufficient vitamin D.