31 Aug 2023 --- ByHeart, Reckitt/Mead Johnson Nutrition and Perrigo Wisconsin received warning letters from the US Food and Drug Administration (FDA) for infractions of the Federal Food, Drug, and Cosmetic Act (FD&C Act) and the FDA’s Infant Formula regulations. After reviewing the companies’ submitted corrective action responses to the FDA’s inspectional observation forms, the agency has concluded that certain areas still require corrective actions.