How Blue Raspberry Flavor Came To Be - Chowhound

Amaranth has another name — FD&C Red No. 2 — and it was once a commonly-used food dye, until questions about its safety arose. In 1976, the Food and Drug Administration banned the use of Red No. 2 after research showed that it caused cancer in lab rats. There's still some uncertainty over how dangerous Red No. 2 really is for human consumption — and it is still legal in most other countries. But after the FDA…