Hidden Chemicals Enter US Food Supply
A new investigation reveals that chemicals of unknown safety are being added to the US food supply without FDA oversight or public knowledge. Regulatory loopholes have allowed manufacturers to introduce hundreds of additives without public disclosure or independent review. Consumer groups and scientists are raising alarms about long-term health impacts, urging transparency and stricter oversight.
The core issue is a loophole in the 1958 Food Additives Amendment, which created a category for substances "Generally Recognized as Safe," or GRAS. This was intended for common ingredients with long histories of safe use, like vinegar or salt, exempting them from pre-market safety reviews. Over time, the GRAS provision has become the primary method for introducing new chemicals into the food system. An analysis by the Environmental Working Group found that since 2000, nearly 99% of new food chemicals have entered the market through the GRAS loophole, with the FDA reviewing only 10 new additives in that same period. Companies can determine on their own that a substance is GRAS, often by hiring their own hand-picked experts, and are not required to notify the FDA of their decision. This "secret GRAS" process means hundreds, possibly thousands, of ingredients are in use without the agency's knowledge or independent review. This self-certification has led to health concerns. For example, tara flour, a GRAS substance, was linked to hundreds of cases of gastrointestinal illness and even gallbladder surgeries in 2022 before being recalled. Other substances with GRAS status, like butylated hydroxyanisole (BHA), are listed as possible human carcinogens. Advocacy groups like the Center for Science in the Public Interest and the Environmental Working Group have long pushed to close this loophole. In response to growing pressure, the Department of Health and Human Services and the FDA have signaled intentions to reform the system, with proposals to require mandatory GRAS notifications. Legislation has been introduced in Congress, such as the Toxic Free Food Act and the Better Food Disclosure Act, aiming to eliminate the self-affirmed GRAS pathway. These bills would require manufacturers to notify the FDA of all GRAS substances and establish a systematic process for re-evaluating the safety of existing additives.
