A plaintiff’s failure to satisfy basic pleading requirements can be a potent defense to class actions.  That was illustrated by a recent Pennsylvania federal court decision granting defendants’ motion to dismiss an amended complaint in a class action alleging that major food companies manufactured and marketed addictive ultra-processed foods (“UPFs”) that caused the plaintiff’s health conditions.  Martinez v. Kraft Heinz Co., Inc. et al., 2026 WL 1878602 (E.D. Pa. June 30, 2026). 

The Martinez plaintiff brought claims against eleven food companies—including Kraft Heinz, Mondelez, PepsiCo, Coca-Cola, General Mills, and Nestlé—alleging that the defendants adopted techniques similar to those used by the tobacco industry to create addictive UPFs and deployed predatory marketing campaigns targeting children.  The plaintiff, who was diagnosed with type 2 diabetes and non-alcoholic fatty liver disease at age 16, asserted claims for negligence, failure to warn, breach of warranty, misrepresentation, and related theories.

In 2025, the court dismissed the plaintiff’s original complaint for failure to state a claim.  Martinez v. Kraft Heinz Co., Inc., 2025 WL 2447793 (E.D. Pa. Aug. 25, 2025).  The court dismissed the first complaint for failure to plead causation, failure to identify the specific products the plaintiff consumed, and failure to adequately put the defendants on notice pursuant to Rule 8.  The court noted that type 2 diabetes is a “multifactorial disease” with many potential causes, and that basic pleading standards require more than the mere possibility of causation.  The court characterized the complaint as a “shotgun pleading” that made it “impossible for each Defendant to determine what conduct, design, promotion, sale, or product Plaintiff is referring to.” 

After filing an amended complaint, defendants moved to dismiss once again, and the court followed a similar approach in dismissing the complaint for a second time.  Again, the plaintiff “cast[] a wide net in seeking to hold numerous food producers liable for illnesses resulting from his consumption of nearly two hundred products over the course of multiple years.” 

First, the court concluded again that the plaintiff failed to plead causation.  Although the plaintiff pleaded that each of the defendant products increased the risk of his diagnoses, the court found that was insufficient to establish but-for causation because “allegations of increased risk, biological plausibility, and association do not show that any particular product —or any particular Defendant’s product—actually caused Martinez’s diagnoses.”  The court reinforced the importance of adequately alleging but-for causation, noting that it was “a necessary element to establish a right to relief in product liability actions.” 

Second, the court found that the alternative joint liability doctrine did not apply to the facts in cases like Martinez where “where actual cause has not or cannot be established” and there is not allegation that each of the defendants were equally responsible for the plaintiff’s diagnoses.  The court noted that the alternative joint liability doctrine applies only where multiple defendants have engaged in tortious behavior, the harm must have been caused by only one of the defendants, but there is uncertainty as to which defendants caused the harm. These decisions reinforce that plaintiffs in product liability suits—even those raising serious public health concerns—must satisfy basic pleading requirements by identifying the specific products they consumed and connecting those products to their alleged injuries.  For defendants facing similar UPF-addiction theories, Martinez illustrates that causation and product-identification arguments remain potent grounds for early dismissal where complaints rely on sweeping industry-wide allegations without particularized facts tying a specific plaintiff to specific products.