Blue Color
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What it is
Blue color refers to substances added to foods to give them a blue hue. Many blue food colors are synthetic dyes, often derived from petroleum.
Why it's used
Blue colors are primarily used to make foods visually appealing and to enhance their appearance. They are commonly found in products like candy, beverages, baked goods, frozen desserts, and snacks.
Health notes
In the US, synthetic blue colors like FD&C Blue No. 1 and FD&C Blue No. 2 are FDA-approved color additives. Some studies have suggested a link between synthetic food colors, including blue ones, and hyperactivity in some children, though evidence is mixed. JECFA and EFSA have evaluated many synthetic food colors and set acceptable daily intakes for them. In April 2025, the FDA announced a plan to phase out petroleum-based synthetic dyes, which includes Blue 1 and Blue 2, from food products.
Allergen info
Not a major allergen.