Texas' Food and Drug Commissioner in 1911 blamed recurrent outbreaks of dye poisonings on "women's love for pretty colors":
That quote is from an interesting article on the history of St. Patrick's Day food. Thought some might find it interesting.
And here is a 50 page report on the history of food coloring (I haven't read it yet.)
Probably most people don't find these kinds of things interesting; guess I'm just weird! Enjoy!