And *natural* colors aren’t necessarily any better.
My daughter was allergic to a *natural* red, carmine, which is made from insect shells.
Fortunately we were able to track it down because she only reacted a few times with itching and hives and we knew what she had eaten that day.
Carmine is listed either as carmine, or as *natural color* without being specific. We found out it’s in some varieties of yogurt.
For some reason those allergies seem to go hand in hand.
It’s the same red insect dye used to dye redcoat British uniforms during the colonial age.