The FDA announced today that it is revoking the authorization for the use of FD&C Red No. 3 as a matter of law, based on the Delaney Clause of the Federal Food, Drug, and Cosmetic Act (FD&C Act). The FDA is amending its color additive regulations to no longer allow for the use of FD&C Red No. 3 in food and ingested drugs in response to a 2022 color additive petition. The petition requested the agency review whether the Delaney Clause applied and cited, among other data and information, two studies that showed cancer in laboratory male rats exposed to high levels of FD&C Red No. 3 due to a rat specific hormonal mechanism. The way that FD&C Red No. 3 causes cancer in male rats does not occur in humans. Relevant exposure levels to FD&C Red No. 3 for humans are typically much lower than those that cause the effects shown in male rats. Studies in other animals and in humans did not show these effects; claims that the use of FD&C Red No. 3 in food and in ingested drugs puts people at risk are not supported by the available scientific information.

The Delaney Clause, enacted in 1960 as part of the Color Additives Amendment to the FD&C Act, prohibits FDA authorization of a food additive or color additive if it has been found to induce cancer in humans or animals. This is not the first time the agency revoked an authorization based on the Delaney Clause. For example, in 2018, the FDA revoked the authorization for certain synthetic flavors based on the Delaney Clause in response to a food additive petition.

Food and beverage manufacturers who use FD&C Red No. 3 in their products will have until January 15, 2027 to reformulate their products. Other countries still currently allow for certain uses of FD&C Red No. 3 (called erythrosine in other countries). However, foods imported to the U.S. must comply with U.S. requirements.