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.
Too much vitamin A. Overdoing vitamin A-containing supplements or medications can trigger hair loss, according to the American Academy of Dermatology. The Daily Value for vitamin A is 5,000 International Units (IU) per day for adults and kids over age 4; supplements can contain 2,500 to 10,000 IU. What to do: This is a reversible cause of hair loss and once the excess vitamin A is halted, hair should grow normally.