The litigation spans over 1,000 pending lawsuits against Abbott and Mead Johnson Nutrition across state and federal courts. The federal MDL 3026 consolidates 797 cases in the Northern District of Illinois as of May 2026. The core dispute centers on whether manufacturers knew that formula-fed premature infants face six to ten times higher NEC risk than breast-fed infants, and whether they failed to warn adequately. Courts applying the learned intermediary doctrine have ruled that manufacturers' duty to warn runs to neonatologists, not parents, and that physicians testified they would have made identical feeding decisions regardless of additional warnings. The FDA, CDC, NIH, and American Academy of Pediatrics have all concluded there is no conclusive evidence that formula causes NEC—a position Abbott cited in response to the verdict.
The verdict exposes a fundamental tension in mass tort litigation: juries are awarding substantial damages based on causation theories that federal regulators and leading medical organizations have not endorsed. Illinois counties have drawn scrutiny as forums for such cases. The outcome will likely influence settlement discussions and pending bellwether trials scheduled through early 2027.