Often red colouring comes from cochineal... which is derived from an insect, if you can believe that!
Oh yes, I definitely can. I was studying the ingredients on some of our yogurt-coated fruit and nuts at work the other day, and was curious to know what 'shellac' is. Looked it up online and it's derived from insect larvae! Ewwww.
It really p..... me off. Why do so many non-animal foods have to contain bits of DEATH? Seriously.