FD&C Blue1

FD&C Blue 1 is a synthetic food coloring that gives foods a bright blue hue. It is also known as Brilliant Blue FCF. This dye is made from petroleum.

Manufacturers add FD&C Blue 1 to a variety of foods and drinks to achieve a blue color. It is commonly found in candies, baked goods, beverages, and some dairy products.

FD&C Blue 1 is an FDA-approved color additive for use in food. In April 2025, FDA announced a plan to phase out petroleum-based synthetic dyes, including Blue 1. JECFA has evaluated Brilliant Blue FCF (Blue 1) and established an acceptable daily intake. Some studies have suggested a link between synthetic food dyes and hyperactivity in children, but the evidence is mixed. The FDA states that for most children, there is no proven link between consuming synthetic food dyes and behavioral problems, though some sensitive children may experience such effects.