FD&C Blue #1 And Yellow #5

FD&C Blue #1 and Yellow #5 are synthetic color additives made from petroleum. They are used to give foods a blue and yellow hue, respectively, and can be combined to create other colors like green.

These dyes are added to a wide range of processed foods and beverages to enhance their visual appeal. They are commonly found in candies, snacks, desserts, and drinks.

Both FD&C Blue #1 and Yellow #5 are approved color additives by the FDA. In April 2025, the FDA announced a plan to phase out petroleum-based synthetic dyes, including these two. JECFA has evaluated both dyes and set acceptable daily intakes. EFSA has also evaluated both and concluded they are safe at current uses. Some studies have suggested a link between synthetic food dyes, including these, and hyperactivity in some children, but the evidence is mixed. Yellow #5 has also been associated with rare allergic reactions in sensitive individuals.