The Non-Financial Ledger

Amy Wysocki bought a tub of yogurt at a store in San Marcos, California sometime in 2023. She wanted something healthy. She looked at the label. The label told her exactly what she needed to hear: only natural ingredients. No artificial flavors. No preservatives. Just the good stuff. She paid for it, brought it home, and ate it.

She had no way of knowing she was eating plastic softener.

That is the specific and ordinary betrayal at the center of this case. Chobani did not sell Amy Wysocki contaminated yogurt by accident and then immediately come clean. The company had a marketing apparatus deliberately engineered to make her feel safe. The words “Only Natural Ingredients” are not buried in fine print. They are on the front of the container. They are on the lid. They are the first thing you read when you reach for the cup. The label works exactly as designed: it activates trust.

When researchers ask consumers what they think a food product means when it says “natural,” the majority assume it means no chemicals. That is not a misreading of the label. That is the intended reading. Chobani’s marketing team understood this completely. The lawsuit cites survey data showing 52% of consumers, when they do not see “natural” on food packaging, assume the product contains chemicals. Chobani put “natural” on the package so those same people would assume the opposite. It charged more money for that assumption.

Meanwhile, the yogurt cup itself, made from #5 polypropylene plastic, was almost certainly leaching the industrial plasticizer DEHP and other phthalate compounds directly into the food. These are not trace environmental contaminants picked up during shipping. Phthalates are used as catalysts in the manufacturing process of polypropylene. They are baked into the material. Every time you eat food that has been sitting in a polypropylene container, you are a potential exposure event.

DEHP does not ask permission before it interferes with your hormones. It enters your bloodstream. It mimics or blocks hormonal signals. In women of reproductive age, repeated exposure has been linked to earlier menopause, pregnancy loss, preterm birth, and low birth weight. In children and developing fetuses, phthalates can disrupt neurological development. Scientists who study these chemicals have called for their elimination from food packaging and consumer products specifically because of what they do to children’s brains. The EPA classifies DEHP as a probable human carcinogen. California’s Proposition 65 lists it because it causes cancer, birth defects, and reproductive harm. These are not speculative risks. They are documented effects that regulators and researchers have known about for years.

Chobani knew or should have known. The complaint makes this point directly: as the manufacturer and packager, Chobani is in possession of, or capable of obtaining, purity reports and testing data from its plastic suppliers. It either tested and said nothing, or it chose not to test. Both choices produced the same outcome. The label said natural. The cup said otherwise.

Amy Wysocki is still interested in buying Chobani yogurt. She says so in the complaint. She just wants to be able to trust what the label says. That is a remarkably modest request from someone who was unknowingly fed an industrial plasticizer and a probable carcinogen. She does not want Chobani destroyed. She wants Chobani to tell the truth. The fact that it took a class action lawsuit filed in federal court to make that demand says everything about how much the company valued her trust in the first place.

“She had no reason to believe that the Product contained, or risked containing, in a single serving, unsafe levels of phthalates.”

There are tens of thousands of people like Amy Wysocki. Every person who bought a Chobani Greek yogurt in the United States and read that label and felt reassured is a member of this class. Most of them will never know they were plaintiffs. Most of them will never know what was in their yogurt. They just trusted a sticker on a plastic cup.

Legal Receipts: What the Complaint Actually Says

These are direct quotes from Case No. 3:25-cv-00907-JES-VET, filed April 16, 2025, in the U.S. District Court, Southern District of California. Nothing below is paraphrased. This is what the lawyers wrote under penalty of law.

“Recent third-party testing revealed that the Products contain multiple plastic chemicals, including di-2-ethylhexyl phthalate (‘DEHP’), diethyl phthalate (‘DEP’), dibutyl phthalate (‘DBP’), and phthalate substitute called di-2-ethylhexyl terephthalate (‘DEHT’).”

“These phthalates are endocrine-disrupting chemicals ‘mainly used as plasticizers added to polyvinyl chloride (PVC) plastics for softening effects’ which ‘are detrimental to human health.’ These chemicals have also been reported as probable human carcinogens by the EPA.”

“Most Chobani yogurt cups—including Plaintiff’s—are made from #5 plastic, known chemically as polypropylene. And ‘[p]hthalates are commonly used as a catalyst in the polymerization of propylene to polypropylene.'”

“Defendant also had a duty to disclose because of its exclusive and/or superior knowledge concerning the true nature of the Product. Defendant also had a duty to disclose because the presence of phthalates was contrary to a representation actually made: ‘Only made with natural ingredients.'”

“On January 21, 2025, prior to filing this complaint, Defendant’s Counsel received Plaintiff’s demand letter via certified mail. The letter advised Defendant that it was in violation of the CLRA with respect to the presence of phthalates in the Product, and demanded that they cease and desist from such violations and make full restitution by refunding the monies received therefrom. Defendant failed to remedy the issues raised by the notice letter.”

“There were reasonably available alternatives to further Defendant’s legitimate business interest other than the conduct described above, such as warning about the risk of phthalates and/or testing to ensure phthalates are not present. Defendant could have required that its plastic supplier also test and ensure purity but didn’t. It could have used a different style of plastic, but it didn’t.”

“DEHP is on the Proposition 65 list because it can cause cancer and birth defects or other reproductive harm.”

Societal Impact Mapping

Public Health

Phthalates in food are a documented public health crisis, and the science the complaint cites is not fringe literature. These are peer-reviewed studies and federal agency assessments.

• Endocrine disruption at low doses: The complaint cites peer-reviewed research establishing that the traditional toxicology principle “the dose makes the poison” does not apply to phthalates. Low-dose exposure can be as harmful as, or more harmful than, high-dose exposure because of how these chemicals interact with the body’s hormonal signaling systems. Every yogurt serving is a low-dose exposure event.
• Reproductive harm to women: DEHP exposure is linked to earlier menopause, pregnancy loss, preterm birth, and low birth weight. These are not theoretical risks; they are documented in peer-reviewed literature cited directly by the complaint, including a 2021 study published in Healthcare (Basel).
• Male reproductive toxicity from DEP: Diethyl phthalate, found in both tested Chobani products, causes androgen-independent male reproductive toxicity with documented effects on sperm, as well as developmental toxicity and liver effects. This was established by a systematic review of animal toxicology studies published in the National Library of Medicine.
• Children’s neurological development: A group of physicians, researchers, and public health experts published a formal call in the American Journal of Public Health demanding the elimination of phthalates from consumer products specifically because of documented adverse effects on children’s brain development. Food packaging is one of the primary exposure vectors named in that call.
• Cancer risk from DEHP: The EPA classifies DEHP as a probable human carcinogen. California’s Proposition 65 lists DEHP as a chemical known to cause cancer, birth defects, and reproductive harm. Chobani’s packaging carries no Prop 65 warning. It carries the phrase “Only Natural Ingredients” instead.
• Disruption of respiratory and nervous systems: Beyond reproductive and developmental harm, the complaint cites research documenting phthalate-linked disruptions to the respiratory and nervous systems. These are systemic effects that compound over time with repeated low-dose exposure through everyday food consumption.
• Science cited by the ATSDR and CDC: The Agency for Toxic Substances and Disease Registry published a full toxicological profile for DEHP documenting hepatic, renal, immunological, reproductive, and developmental effects. This federal body’s findings are cited directly in the complaint as the baseline for what is known about DEHP toxicity.

“The paradigm of ‘the dose makes the poison’ does not hold for phthalates, and other endocrine disrupting chemicals. The unique properties of phthalates, including low-dose effects, nonmonotonic dose response curves, and quick metabolism, disobey traditional principles of toxicology.”

Economic Inequality

The financial harm embedded in this case is not abstract. Chobani charged a premium specifically because of the “natural” marketing claim, and that premium was extracted from consumers who were deceived about what they were buying.

• The premium pricing mechanism: The complaint establishes that consumer research shows 2 in 3 consumers say clean-label claims like “natural ingredients” directly influence their purchasing decisions. Chobani leveraged this documented consumer preference to charge more money for a product that did not deliver on the claim. The lawsuit describes this as a price premium “up to the full price of the product.”
• Tens of thousands of affected consumers: The complaint estimates tens of thousands of purchasers of Chobani Greek yogurt products have been financially harmed. Because individual damages are relatively small (the price of yogurt cups), individual litigation is economically impossible; hence the class action structure. The aggregate harm, however, likely amounts to millions of dollars in unjust enrichment for Chobani, as acknowledged in the complaint.
• Barriers to informed purchasing: Plaintiff Amy Wysocki’s complaint states she remains unable to make an informed purchasing decision about Chobani products as long as the label says “only natural ingredients” without disclosure of phthalate risks. This is economic harm in addition to financial loss: she cannot trust the price-to-quality relationship that the label advertised. Every similarly situated consumer faces this same ongoing information asymmetry.
• Chobani’s market position compounds the harm: Chobani is a dominant force in the U.S. Greek yogurt market, selling nationally across California and the United States. The deceptive label was not a regional experiment. It was applied systematically across all products with “Only Natural Ingredients” packaging, covering every flavor and variation that shares substantially similar trade dress and the same #5 plastic container.
• No recourse without litigation: The complaint documents that Chobani received a formal cease-and-desist demand letter in January 2025 and failed to respond or remedy the issue. Consumers have no regulatory authority forcing immediate product label corrections or recalls in this scenario. The only accountability mechanism available to these buyers was a federal class action lawsuit.
• DBP prohibited in children’s products but present in food: The complaint notes that dibutyl phthalate (DBP) is banned under California and federal law in children’s toys and child care articles at levels greater than 0.1% because of its known reproductive and developmental harms. The same chemical that is illegal to put in a child’s teething ring was found in food marketed for general consumption under a “natural” label.

The “Cost of a Life” Metric

What Now? The Watchlist and the Path Forward

The lawsuit is live. The label is still on shelves. Here is who has power in this situation and what you can do with yours.

Corporate Leadership Responsible

• Chobani, LLC: Named defendant. New York corporation with its principal place of business in New York, New York. Responsible for all product labeling, packaging decisions, and supplier quality requirements for the yogurt products at issue.
• Director of Packaging / VP of Supply Chain [REDACTED – Not in Source]: The specific individual(s) within Chobani who approved the #5 polypropylene cup specification, who manage the plastic supplier relationship, and who are responsible for obtaining or commissioning purity reports from packaging suppliers, are not named in the complaint. Discovery will likely seek to identify them.
• Director of Marketing [REDACTED – Not in Source]: The individuals responsible for the “Only Natural Ingredients” label claim and the decision to place it prominently on the front and lid of the product are not named in the source. The complaint makes clear that Chobani LLC as a corporate entity is responsible for this marketing decision.

Regulatory Watchlist

• U.S. Food and Drug Administration (FDA): The FDA has primary jurisdiction over food labeling claims. The “Only Natural Ingredients” claim, if proven to be false based on the presence of phthalate contaminants, falls within the FDA’s authority over misleading food labeling under the Federal Food, Drug, and Cosmetic Act. Report this product using the FDA’s MedWatch or Safety Reporting Portal.
• Environmental Protection Agency (EPA): The EPA has already classified DEHP as a probable human carcinogen. The Integrated Risk Information System (IRIS) database entry for DEHP is cited directly in the complaint. The EPA’s existing DEHP risk assessment is a key piece of evidence in this litigation.
• California Office of Environmental Health Hazard Assessment (OEHHA): OEHHA administers California’s Proposition 65 list. DEHP and DBP are both on this list. If testing confirms these chemicals are present in Chobani’s yogurt at actionable levels, this may independently trigger Prop 65 warning obligations Chobani has not fulfilled.
• Federal Trade Commission (FTC): The FTC has authority over deceptive advertising claims. “Only Natural Ingredients” as a product claim that is materially false based on third-party testing falls squarely within the FTC’s mandate to protect consumers from deceptive commercial claims. File a complaint at reportfraud.ftc.gov.
• California Attorney General’s Office: The complaint invokes California’s Unfair Competition Law and False Advertising Law. The California AG has independent authority to investigate and prosecute UCL and FAL violations affecting California consumers. Public pressure on the AG’s Consumer Protection Section can accelerate state-level action.

Mutual Aid, Organizing, and Direct Action

• Join or monitor the class action: The class includes all U.S. consumers who purchased Chobani Greek Yogurt products during the applicable statutory period. You do not need to do anything to be included; if you purchased these products, you are likely already a potential class member. Monitor the case at ClassAction.org (Case 3:25-cv-00907-JES-VET) for updates on class certification and settlement negotiations.
• Stop buying the product until the label changes: The simplest economic signal you can send is to pull the product from your cart until Chobani either proves the “Only Natural Ingredients” claim is accurate or removes it from its packaging. Share this article to help other shoppers make the same informed choice.
• Demand accountability from retailers: The retail stores selling this product are also positioned to act. Contact the store management or corporate offices of the chain where you buy Chobani and ask what testing they require from suppliers who make “natural” label claims. Grocery chains have leverage over product specifications that individual consumers do not.
• Pressure industry standards on food packaging: Phthalate-free polypropylene catalysts exist commercially and reportedly boost productivity. The technology to make this cup without phthalate contamination risk is available. Demand that food manufacturers commit publicly to phthalate-free packaging. Organizations like the Environmental Working Group (EWG) and Breast Cancer Prevention Partners track these commitments and publish scorecards.
• Support pediatric and reproductive health advocacy groups: Physicians and researchers have formally called for the elimination of phthalates from consumer products because of what they do to children’s developing brains and reproductive systems. Donate to or amplify organizations working on chemical policy reform, including the American Public Health Association and Safer Chemicals, Healthy Families coalition.
• Push Congress on FDA natural labeling standards: The FDA has never formally defined what “natural” means on a food label. That regulatory gap is precisely what Chobani is exploiting. Contact your federal representatives and demand that the FDA finalize a legally binding definition of “natural” that prohibits its use when industrial chemical contamination is present or probable.