Do you worry about artificial dyes in food?

The FDA is holding hearings this week to explore whether there's a link between artificial food dyes and hyperactivity in children. Some mothers have already made up their minds and have cut artificial dyes out of their children's diets -- and many say their children's behavior improved dramatically as a result. Food manufacturers say the dyes are safe, though.

What do you think? Do you worry about artificial dyes in your food?