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 F. Kennedy Jr., has directed the U.S. Food and Drug Administration (FDA) to revise its Substances Generally Recognized as Safe (GRAS) Final Rule in an effort to increase oversight of specific food ingredients and heighten food transparency.

The nation's top health official, Robert F. Kennedy Jr., is taking steps to tighten oversight of chemicals in the U.S. food supply, a key component of his "Make America Healthy Again" agenda.