It's more of a commentary about how food in the US is overly colored for no other reason than it looks cool, sometimes at the detriment of the health of the consumer.
Neither color of Fruit Loops is natural. American food is colored to look cool, because cool sells better with Americans. Canadian food is colored to look dull, because dull sells better with Canadians.
It's just how cereal is made. Before fruit loops are loops, they are grain mash. That grain mash is mostly uniform in color and brown-ish. In order to have a bowl filled with loops where some of the loops are yellow and others are green and others are blue, they add different colors of dye. It's the same whether it's neon green or organic green - the dye is added at the end for appeal to the consumer.
