FDA moves to close long-standing loophole governing food additives

Under current regulations, substances that were in use before certain approval pathways were established have been allowed to remain on the market without a fresh, comprehensive safety assessment. The agency's new push would subject that older inventory of additives to contemporary standards, a step FDA officials say is overdue.

Background on the regulatory gap

The move is part of a wider review of ingredients found in ultraprocessed foods, which are made through industrial processing and include additives, colorings, preservatives or other ingredients not found in home kitchens. Products such as sugary cereals, soft drinks, potato chips and frozen pizzas fall into that category and dominate large parts of the American supermarket.

FDA officials, including Kyle Diamantas, have been involved in the agency's outreach on the issue. Diamantas and other senior staff have briefed stakeholders as the agency prepares to formalize its approach, according to people familiar with the process.

The announcement comes amid heightened political attention to food policy. Robert F. Kennedy Jr. has publicly championed tighter scrutiny of additives, and the broader MAHA movement — short for Make America Healthy Again — has pressed the FDA and Congress to revisit the way chemicals in the food supply are evaluated.

Political and industry response

Members of Congress have also signaled interest in the regulatory shift. Lawmakers from both parties have asked the FDA to clarify which additives remain on the market under the older pathway and what evidence supports their continued use. The agency's new process is expected to produce a public inventory and a timeline for reassessment.

Industry groups have begun to weigh in, with some manufacturers arguing that ingredients cleared under earlier rules should remain available while new reviews are carried out. Consumer advocates, by contrast, have welcomed the move and urged the FDA to move quickly.

The FDA has not yet named every additive that would fall under the new review, but officials said the process will be carried out in phases. The agency plans to publish a list of substances slated for reassessment and to invite public comment on the methodology used.

What the FDA's review will involve

Food safety experts note that closing the loophole would not automatically remove any product from shelves. Instead, the change would require manufacturers to submit updated safety data for older additives, which the agency would then evaluate against current scientific standards.

The regulatory shift could have significant implications for global food companies that supply the U.S. market, since ingredients reformulated or reassessed domestically often influence product formulations abroad. The FDA has indicated that it will coordinate with international counterparts during the review.

The agency's timeline for completing the initial phase of the review has not been finalized. Officials said they expect the first set of reassessment decisions within the next several years, depending on the complexity of the data involved.

What happens next

The closure of the loophole marks one of the more consequential changes to U.S. food regulation in decades, and it is likely to draw sustained attention from consumer groups, industry and lawmakers as the process moves forward.