Kennedy Jr., an ardent vaccine critic who would have been Weldon’s boss as health secretary. Perhaps Weldon’s biggest problem ...

RFK Jr. has claimed measles can be treated with vitamin A and that severe infection is linked to poor diet. But many experts who spoke with ABC News disagreed.

The Health and Human Services Secretary directed the FDA to consider eliminating a pathway that allowed companies to "self-affirm" whether their ingredients are safe for consumption.

Microplastics really are a public health emergency. But instead of talking about his signature issue, he’s babbling about ...

For decades, the U.S. Food and Drug Administration's GRAS rule has allowed untested additives into the food supply. Can RFK ...