Health and Human Services Secretary Robert F. Kennedy Jr. ordered the Food and Drug Administration on Monday to revise its rule allowing food companies to "self-affirm" that its ingredients are safe.

It’s time to revamp the FDA’s “generally recognized as safe,” or GRAS, program that allows companies to add untested ingredients to food, the Health and Human Services secretary says. That may be difficult to do.

U.S. Secretary of Health and Human Services Robert Kennedy Jr. directed the Food and Drug Administration on Monday to revise safety rules to help eliminate a provision that allows companies to self-affirm that food ingredients are safe.