Dear M.E.B.: I think many media sources avoid the complexity of the issue. The preferred unit to describe doses of vitamin A are now micrograms RAE, or “retinol activity units.” Different vitamin A ...

After 20 surgeries to remove skin cancers from his face, New York-based journalist John Koten decided to start taking better ...

If I am taking vitamin A, what is a reasonable dose? I have seen reports that taking too much can cause liver damage, but ...

For example, 3,000 IU of vitamin A (as retinol) is 900 mcg RAE. About 18,000 IU beta carotene, which is less potent than ...

Women who might become pregnant should be especially cautious with vitamin A supplements or avoid them entirely .

My mom’s dermatologist and esthetician say her skin looks so radiant and youthful thanks to these seven anti-aging skincare ...

If I am taking vitamin A, what is a reasonable dose? I have seen reports that taking too much can cause liver damage, but nobody says how ...

For example, 3,000 IU of vitamin A (as retinol) is 900 mcg RAE. About 18,000 IU beta carotene, which is less potent than ...