what does a value below or above the RNI mean?

Question

RNI (reference nutrient intake)

Answer 1

See my link

It wasestablished that for a givennutrient there is an amount recommended for more than 95% of the population.

If you are more above, it seems that you can have an overdose, and the contrary if you are below

As you have not given the nutrient, I can not be more precise