Blue 2 (Indigo Carmine) is rated Use Caution by CheckIt AI. Synthetic blue dye used in candy and baked goods. May cause nausea and allergic reactions at high doses.
Use Caution Food Dyes
Synthetic blue dye used in candy and baked goods. May cause nausea and allergic reactions at high doses.
Read our complete guide: Food Dyes & Colorants: Natural vs Synthetic Guide
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CheckIt AI. (2026). "What Is Blue 2 (Indigo Carmine)? Safety, Side Effects & Foods That Contain It (2026)". Climaverse PBC. Retrieved from https://getcheck.it/glossary/blue-2"What Is Blue 2 (Indigo Carmine)? Safety, Side Effects & Foods That Contain It (2026)." CheckIt AI, Climaverse PBC, 2026-04-17. https://getcheck.it/glossary/blue-2.<a href="https://getcheck.it/glossary/blue-2">What Is Blue 2 (Indigo Carmine)? Safety, Side Effects & Foods That Contain It (2026) — CheckIt AI</a>@misc{checkit2026glossaryblue2,
title = {What Is Blue 2 (Indigo Carmine)? Safety, Side Effects & Foods That Contain It (2026)},
author = {CheckIt AI},
year = {2026},
publisher = {Climaverse PBC},
url = {https://getcheck.it/glossary/blue-2},
note = {Retrieved 2026-04-17}
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