Blue 2 (Indigo Carmine) Side Effects

Blue 2 (Indigo Carmine) is a artificial food dye with 1 high-severity side effects. Found in 14 products in our database. FDA approved.

5
Known Side Effects
14
Products Contain It
1
High Severity
4
Safer Alternatives

What Is Blue 2 (Indigo Carmine)?

Blue 2 (Indigo Carmine) is a synthetic indigo dye used in candy, beverages, and pet foods. Animal studies have linked it to brain tumors.

Also known as:
Indigo CarmineFD&C Blue No. 2E132Blue 2 Lake

Known Side Effects

High Risk Brain tumors in animal studies
Moderate Hyperactivity
Low Nausea
Moderate High blood pressure
Low Allergic reactions

Regulatory Status

🇺🇸 FDA Status

FDA approved. Used in candy, beverages, baked goods, and pet food.

🇪🇺 EU Status

Legal with warning labels. Banned in Norway.

Scientific References

  1. Animal studies linking Blue 2 to brain gliomas
  2. EFSA review of indigo carmine safety

Products Containing Blue 2 (Indigo Carmine) (14 found)

These products were found to contain blue 2 (indigo carmine) or its variants in our database of 26,000+ grocery products.

#ProductBrandScore
1Trail Mix Snack PacksKirkland,Kirkland Signature,M&M's0/100
2Trail MixKirkland0/100
3Trail MixKirkland1/100
4ORIGINAL GRAPE, GREEN APPLE, LEMON, STRAWBERRY, ORANGE BITE SIZE CANDIES, ORIGINALMars Chocolate North America LLC1/100
5Skittles LittlesSkittles9/100
6Trail MixKirkland18/100
7PEANUT CHOCOLATE CANDIES, PEANUTMars Chocolate North America LLC20/100
8Equate Complete MultivitaminEquate24/100
9Instant Oatmeal Fruit & Cream Flavor Variety PackGreat Value24/100
10ORIGINAL BITE SIZE CANDIES, ORIGINALMars, Inc.30/100
11Skittles Original CandySkittles30/100
12HOLIDAY FAVORITES JELLY BEANS, CRANBERRY SAUCE, CANDY CANE, PUMPKIN PIE, EGG NOG, HOT CHOCOLATEJelly Belly Candy Company68/100
13ARCHER FARMS, GUPID'S CRUNCH TRAIL MIXTarget Stores68/100
14CHOCOLATE FUDGE SUGAR FREE INSTANT REDUCED CALORIE PUDDING & PIE FILLING, CHOCOLATE FUDGEKraft Heinz Foods Company88/100

Safer Alternatives to Blue 2 (Indigo Carmine)

SpirulinaButterfly pea flower extractBlueberry juiceElderberry extract
📬

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Frequently Asked Questions

What are the side effects of Blue 2?
Blue 2 has been linked to brain tumors in animal studies, hyperactivity, nausea, high blood pressure, and allergic reactions.

⚕️ Disclaimer: This information is for educational purposes only and is not medical advice. Side effect data is compiled from published scientific studies and regulatory assessments. Always consult your healthcare provider for personalized guidance. Last updated: 2026-03-05.

Other Ingredient Side Effects

Red 40 (Allura Red AC) Yellow 5 (Tartrazine) Yellow 6 (Sunset Yellow FCF) Red 3 (Erythrosine) Blue 1 (Brilliant Blue FCF) Aspartame Sucralose Acesulfame Potassium (Ace-K) MSG (Monosodium Glutamate) High Fructose Corn Syrup (HFCS) All Ingredient Side Effects Banned in Europe Ingredient Encyclopedia
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📋 Cite This Data
APACheckIt AI. (2026). "Blue 2 (Indigo Carmine) Side Effects — Health Risks, FDA Status & Products | CheckIt AI". Climaverse PBC. Retrieved from https://getcheck.it/side-effects/blue-2
MLA"Blue 2 (Indigo Carmine) Side Effects — Health Risks, FDA Status & Products | CheckIt AI." CheckIt AI, Climaverse PBC, 2026-03-05. https://getcheck.it/side-effects/blue-2.
HTML Embed<a href="https://getcheck.it/side-effects/blue-2">Blue 2 (Indigo Carmine) Side Effects — Health Risks, FDA Status & Products | CheckIt AI — CheckIt AI</a>
BibTeX@misc{checkit2026sideeffectsblue2, title = {Blue 2 (Indigo Carmine) Side Effects — Health Risks, FDA Status & Products | CheckIt AI}, author = {CheckIt AI}, year = {2026}, publisher = {Climaverse PBC}, url = {https://getcheck.it/side-effects/blue-2}, note = {Retrieved 2026-03-05} }