Lake Blue 1

Lake Blue 1 is a color additive derived from FD&C Blue No. 1. It is made by precipitating the water-soluble Blue No. 1 dye onto an insoluble base, typically aluminum hydroxide. This process creates a pigment that is less soluble in water and more stable in fats and oils than the dye alone.

Manufacturers add Lake Blue 1 to provide a blue color to foods, especially those with low moisture or high fat content. It is commonly found in products like candies, chocolates, and chewing gum, where its insolubility helps prevent color bleeding.

Lake Blue 1, as FD&C Blue No. 1 Aluminum Lake, is an FDA-approved color additive for use in food. In April 2025, the FDA announced a plan to phase out petroleum-based synthetic dyes, which includes Blue 1. JECFA (the Joint FAO/WHO Expert Committee on Food Additives) has evaluated FD&C Blue No. 1 and set an acceptable daily intake. EFSA (the European Food Safety Authority) has also evaluated it. Some studies have suggested a link between synthetic food dyes, including Blue 1, and hyperactivity in some children; however, the FDA has reviewed the scientific evidence and concluded that there is not enough evidence to establish a causal link for the general population.