Which of these statements are correct regarding toxicity, deficiency, and conversion of vitamin A units?

The RDA (as well as other DRIs) for vitamin A is indicated with two different units of measure: micrograms (mcg) of retinol activity equivalents (RAE) and international units (IU).

Which of these statements are correct regarding toxicity, deficiency, and conversion of vitamin A units?

Night blindness and increased infections are early signs of vitamin A deficiency.


Medications containing vitamin A are sometimes used to treat acne, but can cause serious side effects.


If a meal contains 1200 mcg beta-carotene, it has 100 mcg RAE.


An adult female receiving 700 IU of vitamin A daily would meet her needs for that day.


Excessive intake of orange fruits and vegetables is likely to lead to vitamin A toxicity.


 

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