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.

Red food coloring has been thought to give cancer.

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Ican only answer your first question, a machine is like a human body because it's a little similar. they both almost work like the same.