According to Cornell, Red No. 3 is "occasionally used to deepen red in deli meats." The Environmental Working Group notes that it is possible the same ingredient could have been used to enhance the ...

But if you're in the U.S., look for names like Red 40, Yellow 5, or Blue 1 on ingredient lists. Terms like “artificial color” or “color added” can also indicate synthetic dyes.

But if you're in the U.S., look for names like Red 40, Yellow 5, or Blue 1 on ingredient lists. Terms like “artificial color” or “color added” can also indicate synthetic dyes.