Why is vitamin A zero for this multivitamin?

voidpointer

I take Naturelo One Daily for men, on the label it says "1000 mcg RAE" for Vitamin A, but the database item says 0. Screenshot attached.

Karen_Cronometer

The vitamin A value was entered in as mcg RAE instead of vitamin A in IU. They are listed separately in the Vitamin A section of the nutrient targets. I updated the IU value as well. Thanks for letting us know.

voidpointer

I guess I just don't know enough about this. What is mcg RAE?

Karen_Cronometer

There are different types of nutrients that we can make vitamin A from, including beta-carotene, alpha-carotene and beta-cryptoxanthin. These are converted to vitamin A when needed.

We calculate how much vitamin A each one can make and add that to pre-formed vitamin A to get total vitamin A, called Retinol Activity Equivalents (RAE).

Total vitamin A is also shown in International Units (IU), though these units have been phased out in favour of RAE.

TLDR; mcg RAE = micrograms Retinol Activity Equivalents = total vitamin A