A 2025 class action lawsuit claims Chobani’s Greek yogurt contains phthalates, toxic endocrine disruptors that leach from plastic packaging, contradicting its “Only Natural Ingredients” label. Plaintiff Amy Wysocki, who bought the yogurt believing it was free of artificial chemicals, accuses Chobani of false advertising under California’s consumer protection laws. Tests found harmful phthalates like DEHP and DBP, linked to reproductive and developmental issues, even at low doses. Chobani denies wrongdoing, citing compliance with safety standards. The case, ongoing in federal court after a denied dismissal, seeks damages for misled consumers. It highlights broader food safety concerns, urging stricter rules on chemical migration and clearer “natural” labeling. Shoppers can opt for glass-jarred or phthalate-free products to reduce risks while demanding transparency.

Long Version

Unpacking the Chobani Phthalates Lawsuit: Hidden Endocrine Disruptors in Yogurt

Chobani’s Greek yogurt has long been a favorite for those seeking simple, pure foods. But a class action lawsuit filed in April 2025 alleges that its products contain toxic chemicals called phthalates—endocrine disruptors that leach from plastic packaging and pose health risks. The suit, led by plaintiff Amy Wysocki, claims Chobani’s “Only Natural Ingredients” labeling is false advertising and deceptive. As of October 2025, the case is ongoing in federal court, raising questions about food safety and product labeling. This article explores the science, legal claims, and broader implications for consumers.

The Discovery: Tests Reveal Plastic Contamination

In December 2024, a nonprofit focused on plastic pollution tested common foods, including Chobani’s Nonfat Plain Greek Yogurt and Whole Milk Plain Greek Yogurt. Samples were analyzed in a lab certified for precision chemical detection. The results showed both products contained phthalates, synthetic compounds used as plasticizers to make materials like polyvinyl chloride flexible. Specifically, the yogurts had di-2-ethylhexyl phthalate, diethyl phthalate, dibutyl phthalate, and di-2-ethylhexyl terephthalate, a supposed safer substitute still linked to hormonal issues. These chemicals weren’t added ingredients but leached from packaging during manufacturing, storage, or transport—a process called chemical migration.

Wysocki, a California resident, bought the nonfat yogurt in 2023, trusting its “natural” claim and paying a premium for what she thought was a clean product. After the test results emerged, she filed a lawsuit in April 2025 in a California federal court, representing a nationwide group of consumers who purchased the products.

The Science: Why Phthalates Are a Concern

Phthalates are endocrine disruptors, chemicals that interfere with hormones, disrupting the body’s signaling systems. Unlike typical toxins, they can cause harm at low doses due to nonmonotonic dose-response curves, where small amounts trigger stronger effects than larger ones because of how they interact with hormone receptors.

Di-2-ethylhexyl phthalate is considered a probable carcinogen and is linked to liver damage, reproductive toxicity, and developmental disorders. Diethyl phthalate contributes to reproductive and developmental issues, while dibutyl phthalate, restricted in some products due to its toxicity, is associated with birth defects and cancer. Even di-2-ethylhexyl terephthalate, a newer alternative, may cause insulin resistance, high blood pressure, and metabolic issues.

These chemicals pose risks like reduced sperm quality, earlier menopause, low birth weight, pregnancy loss, and preterm birth. In children, they’re tied to neurological issues, while adults face higher risks of developmental disorders, immune problems, kidney issues, and cancer. Phthalates in Chobani’s yogurt likely come from its polypropylene plastic packaging, where they’re used in production, leaving residues that migrate into food.

The Legal Claims: Challenging False Advertising

The lawsuit accuses Chobani of misleading consumers through its “Only Natural Ingredients. No Artificial Flavors. No Artificial Sweeteners. No Artificial Preservatives” label. Under California’s Consumers Legal Remedies Act, it claims the company misrepresented the yogurt’s quality and characteristics by hiding the presence of toxic chemicals. The suit also cites California’s Unfair Competition Law, alleging unlawful conduct, unfair practices that harm consumers more than benefit them, and fraudulent omissions that mislead buyers. Surveys show “natural” labels influence purchases, with many assuming they mean no synthetic contaminants.

Additionally, the case invokes California’s False Advertising Law, targeting Chobani’s packaging as misleading, and seeks damages for overpayment. Nationwide, it claims breach of express warranty, arguing the “natural” label is a broken promise, and unjust enrichment, demanding restitution for profits gained through deception. The suit seeks class certification, damages, legal fees, and a jury trial, arguing consumers wouldn’t have bought the yogurt or would’ve paid less if aware of the risks.

Chobani’s Response: Defending Safety Standards

Chobani denies the allegations, stating its products meet all safety standards set by regulators. The company highlights strict quality controls and third-party testing, arguing that detected phthalates are trace amounts present in many everyday items. They claim their “natural” label refers to core ingredients, not packaging-related contaminants, and aligns with regulatory guidance. Critics argue that safety thresholds don’t account for the latest science on low-dose effects, but Chobani stands by its compliance.

Case Status and Next Steps

By October 2025, the court denied Chobani’s motion to dismiss, allowing discovery and further proceedings. This ruling supports the plaintiff’s claim that overpaying for “natural” yogurt is a concrete economic injury. No trial date is set, but the case could lead to settlements, packaging changes, or broader scrutiny of plastics in food. Other lawsuits against Chobani over labeling suggest growing challenges for the brand.

Broader Impact: Food Safety and Consumer Trust

This case highlights issues in the Greek yogurt market, exposing how plastic contamination can taint “clean” foods. It calls for stricter food safety rules on chemical migration and clearer definitions of “natural ingredients.” For consumers, it’s a reminder that even premium products may carry hidden risks. Surveys show most shoppers value “natural” labels but don’t realize the potential for low-dose chemical exposure.

Advice for Consumers

Chobani’s yogurt meets current legal safety limits, but those concerned about endocrine disruptors might choose glass-jarred products or brands with phthalate-free certifications. Fresh, unpackaged dairy can reduce exposure, and checking beyond marketing claims is key. This lawsuit encourages consumers to demand transparency, support testing efforts, and choose brands that prioritize safety.

The Chobani case is more than a yogurt dispute—it’s a push for safer, more honest food systems. As the legal battle unfolds, consumers hold the power to drive change through their choices.