Why can food coloring give you cancer?

The report reveals that common food dyes pose risks of cancer, hyperactivity in children, and allergies. The food industry dumps over 15 million pounds of the dyes studied into the food supply each year. Three of the dyes carry known carcinogens, and 4 can cause serious allergic reactions in some consumers.

here. I found this for you. don't know how accurate but it may help.