RDI should mostly be disregarded, since each person's requirements vary, and to attach abstract numbers to nutrients, especially since they're way off on fat soluble vitamins, and protein, is a foolish concept. A lot of vitamin a is used in production of sex hormones, and is required more when eating lots of sugar. 250% definitely isn't anything too extreme.
Originally Posted by Graycat
You will notice you have too much vitamin a if you start getting weird cramps in your stomach and dry skin, breaking out, etc; which is actually a sign you're not getting enough too, sans the cramps anyway.
Vitamin a is extremely sensitive to heat too, hence its reaction to sunlight.
Tired eyes, like our tired lives