FD&C Yellow #5 And Blue #1

FD&C Yellow #5 (also known as Tartrazine) and FD&C Blue #1 (also known as Brilliant Blue FCF) are synthetic color additives. They are typically made from petroleum-based raw materials through chemical synthesis.

Manufacturers add these dyes to make foods and beverages more visually appealing. FD&C Yellow #5 provides a yellow color, while FD&C Blue #1 provides a blue color and is often combined with Yellow #5 to create green hues. They are found in a wide range of products, including snacks, candies, drinks, and processed foods.

Both FD&C Yellow #5 and FD&C Blue #1 are FDA-approved color additives. In April 2025, FDA announced a plan to phase out petroleum-based synthetic dyes, which includes FD&C Yellow #5 and FD&C Blue #1. Both dyes have been evaluated by JECFA and EFSA, and both bodies have set acceptable daily intakes. FD&C Yellow #5 has been linked in some studies to hyperactivity in children, though evidence is mixed, and some individuals may experience allergic reactions. Both are generally considered safe at typical intake levels by regulatory bodies.