Blue 2
Also listed as FD&C Blue 2.
This is what the ingredient is.
Blue 2 (Indigo Carmine, Indigotine) is a synthetic dye used to give foods a blue color.
Here is why it shows up on the label.
It works as a food colorant. Used in candies, beverages, and baked goods.
Here is what food agencies say.
The FDA approves it as a certified color additive. Europe approves it as additive E132. The suggested daily limit is about five milligrams per kilogram of body weight.
Here is what research has found.
One of the oldest synthetic dyes. Generally considered safe at approved levels. Limited modern research.
Here are a few things worth knowing.
May cause allergic reactions in rare cases. Use within ADI considered safe.
Sources
- FDA Color Additive
- EFSA E132
How to read this page
We publish plain facts about this ingredient so a label is easier to read. This is not medical advice, and it is not a recommendation to buy, avoid, or use anything. For a personal health question, talk with a clinician who knows your history.