Green Color

Green Color refers to any substance added to food to give it a green hue. These can be synthetic dyes, such as FD&C Green No. 3, or natural pigments, such as chlorophyll from plants or spirulina extract. Synthetic dyes are typically made from petroleum, while natural colors are extracted from plant or algal sources.

Green colors are used by food manufacturers to make products visually appealing or to match expected colors, such as in mint-flavored items or festive treats. They are commonly found in ice cream, frozen yogurt, candies, baked goods, and beverages to create a vibrant green appearance.

In the US, various green color additives are permitted by the FDA, either as approved color additives or generally recognized as safe (GRAS) substances. For example, FD&C Green No. 3 is an FDA-approved color additive. In April 2025, the FDA announced a plan to phase out petroleum-based synthetic dyes, including Green No. 3, Yellow No. 5, and Blue No. 1 (which are often combined to make green). Natural green colors like chlorophyll and spirulina extract are also permitted. The evidence for a link between artificial food colors and hyperactivity in some children is mixed, with some studies suggesting a connection and others finding no clear effect. Regulatory bodies like JECFA and EFSA have evaluated individual green color additives, with their conclusions varying depending on the specific substance.