Federal Court Rejects Amended UPF Personal Injury Pleading Over Causation Gaps
In-house counsel for food and consumer product manufacturers must monitor this ruling, as it affirms that specific causation is a near-insurmountable barrier to aggregated ultra-processed food (UPF) personal injury and public enforcement claims.
On June 30, 2026, a Pennsylvania federal judge denied plaintiff Martinez’s motion for leave to amend his ultra-processed food (UPF) personal injury complaint, holding the 437-page proposed pleading failed to satisfy but-for specific causation requirements for 179 named products consumed over 12 years. The court rejected the plaintiff’s reliance on epidemiological correlations between UPF consumption and chronic disease as insufficient to prove individual product causation, and declined to apply alternative or market-share liability doctrines that require fungible harmful products. The ruling creates binding Third Circuit precedent for pending UPF mass tort cases, and defense counsel in other jurisdictions are already citing it to support pending motions to dismiss. In-house counsel should track adoption of this reasoning in other UPF personal injury and government enforcement actions, and monitor pending federal rulemaking to define 'UPF' that could shape future case theories.