Blue 1
Blue 1: what it does in food, current safety notes, diet compatibility, and shopper guidance from IngrediCheck.
Aliases and label clues
Related topics
Overview
Blue 1 is a synthetic petroleum-derived food dye used to create vivid blue shades in sports drinks, candy, frostings, freezer pops, and novelty snacks. It matters because it is easy to spot on labels and has become part of the broader retailer and regulatory shift away from synthetic colors.
Diet snapshot
What It Does in Food
Blue 1 is most commonly used as synthetic dye and color additive in packaged food.
Category
Food dye
Evidence and Regulatory Summary
Blue 1 remains legal in U.S. food, but it now sits inside the same synthetic-dye phaseout pressure that is reshaping the rest of the color-additive aisle. Retailer exclusion lists and new policy frameworks increasingly treat it as part of a broader dye-family problem rather than a neutral label detail.
Diet Notes
Blue 1 does not usually matter because of vegan or gluten-free status. It matters because many families who want simpler ingredient decks or who are limiting synthetic dyes use it as a practical signal ingredient when comparing products for children.
Shopper Guidance
Read Blue 1 as a pattern clue. It is most useful when it helps you compare heavily dyed products against simpler alternatives in the same category rather than treating one appearance as a complete safety verdict.
Related Guides
Read the connected explainers
Ingredient Deep Dives
Apr 27, 2026 | 8 min read
Blue 1: The Synthetic Dye Still Showing Up in Candy and Drinks
Blue 1 still shows up in sports drinks, frostings, candy, and novelty snacks even as retailers and state laws move against synthetic dyes. Here is what Blue 1 does, where it hides, and why Aldi already moved on it.
Food Policy Watch
Apr 13, 2026 | 11 min read
The FDA's 2026 Synthetic Dye Phase-Out: What It Means for Your Family
The FDA is phasing out petroleum-based synthetic food dyes by the end of 2026. Learn which dyes are affected, why they're being removed, and how to identify them in your food.
Food Policy Watch
Mar 9, 2026 | 10 min read
Red 40 & Yellow 5: The 6 Food Dyes the FDA Is Phasing Out
Red 40, Yellow 5, and 4 other petroleum-based dyes are being removed from US food by the FDA after decades of ADHD and hyperactivity concerns. Here's what's still in your pantry.
Food Policy Watch
Apr 27, 2026 | 11 min read
ALDI Restricted Ingredients List: All 57 Ingredients
ALDI says its private-label food, vitamin, and supplement products will exclude 57 restricted ingredients by the end of 2027. Here is the full list, grouped and normalized for shoppers.
Sources
HHS, FDA to Phase Out Petroleum-Based Synthetic Dyes in Nation's Food Supply
Report Links Synthetic Food Dyes to Hyperactivity and Other Neurobehavioral Effects in Children
Potential Impacts of Synthetic Dyes on Activity in Children: A Review of the Human and Animal Evidence
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