Chobani "20G Protein" Yogurt Lawsuit — 18g, Not 20g?
False Advertising · Lawsuit Filed · Yogurt Labeling HOT

Chobani "20G Protein" Yogurt Hit With Class Action Over Inflated Per-Serving Protein Claims

Published June 30, 2026
Chobani 20G Protein Greek Yogurt 32-ounce tub serving-size false advertising class action
Allegations Only · No Settlement Yet

This article describes a class action complaint. The statements below are unproven allegations. Chobani, LLC has not been found liable, there is no certified class, and there is nothing to claim at this time. This page is informational and is not legal advice.

What Is This Lawsuit About?

A proposed class action filed June 16, 2026 in the U.S. District Court for the Southern District of New York accuses Chobani, LLC of misleading consumers about how much protein is in its 32-ounce "20G Protein" Greek yogurt tubs. The case is captioned Knox v. Chobani, LLC, No. 1:26-cv-05093-VEC. According to the complaint, the named plaintiff is a New York consumer who bought the 32-ounce tubs in reliance on the "20 grams of protein per serving" representation and alleges he would not have paid the same price had he known the figure was, in his view, overstated.

The complaint does not allege that Chobani's yogurt is contaminated or unsafe. Instead, it raises a narrower, technical claim: that Chobani declares an inflated "serving size" on the 32-ounce multi-serving tub, and that the inflated serving is what lets the product display 20 grams of protein per serving rather than the roughly 18 grams the plaintiff says a correctly calculated serving would show. These are allegations only; Chobani has not yet responded in court, and nothing has been proven.

Status Complaint Filed filed June 16, 2026 in the S.D.N.Y. · allegations only · no settlement
What's Alleged Inflated Serving Size Overstates Protein complaint says ~18g per serving, not the labeled 20g, once FDA rules are applied
Products 32-oz "20G Protein" Tubs (Plain & Vanilla) single-serving 6.7-oz cups are not challenged
Can I Claim? No — Nothing to File Yet complaint stage only; no settlement fund and no payout available

The Serving-Size Math at the Heart of the Case

The dispute turns on how the per-serving protein figure is calculated. Under FDA rules, the amount of a food "customarily consumed" in one sitting — the reference amount, or RACC — is 170 grams for yogurt. For a multi-serving container, a manufacturer is supposed to convert that reference amount into a household measure (cups, for yogurt), round it to the nearest standard increment, and use the rounded figure to calculate the numbers on the Nutrition Facts panel.

According to the complaint, Chobani's own label states that 3/4 cup of this yogurt weighs 190 grams. Working backward, the plaintiff alleges that 170 grams of the product is only about 0.671 cups — which rounds to the nearest standard increment of 1/2 cup, not 3/4 cup. Using a 1/2-cup serving, the complaint says the correct "equivalent metric quantity" would be roughly 168.9 grams, and the product would contain about 17.78 grams of protein per serving — a figure FDA rules permit to be rounded to 18 grams on the label.

Instead, the complaint alleges, Chobani declares a 3/4-cup (190-gram) serving, which it says inflates the serving size and therefore every per-serving figure — including protein — by about 12.5 percent. The plaintiff alleges that this is what allows the 32-ounce tub to carry the "20G Protein" name and the "20g per serving" claim at all. Chobani has not yet answered these allegations, and the calculation is the plaintiff's, not a court finding.

Single-Serving Cups Versus the 32-Ounce Tub

The complaint draws a sharp line between Chobani's two formats. It alleges that the single-serving cups are sized at 6.7 ounces — more than the industry's typical 5.3-ounce Greek-yogurt cup — so that they hold enough yogurt to genuinely provide 20 grams of protein. That format, the complaint says, is not the focus of the lawsuit.

The 32-ounce multi-serving tub is different, according to the complaint, because Chobani allegedly did not add more yogurt to reach 20 grams per serving. Instead, the plaintiff alleges, it expanded the declared serving on paper. The complaint contends that for multi-serving containers the FDA gives manufacturers "relatively little discretion" over serving size, so the alleged inflation is, in the plaintiff's words, prohibited rather than a matter of judgment.

The "20 Grams" Marketing

Beyond the package itself, the complaint points to Chobani's broader marketing of the "20g of protein" message — including website copy describing the yogurt as "packed with 20g of complete protein," social-media posts about its "straining process," and a post introducing the 32-ounce tub as "equal to about 5 of our single-serve cups." The plaintiff alleges none of this discloses that, on his reading of the FDA rules, the multi-serving tub provides about 18 grams per serving rather than 20. The complaint frames 20 grams as a recognized consumer "threshold" for protein, which it says makes the difference material to buyers. Chobani disputes claims of this kind generally, and these characterizations remain unproven allegations.

Read the Complaint

The full class action complaint in Knox v. Chobani, LLC is embedded below. The reading copy below has been reformatted for the web from the publicly filed document; exhibit images and personal identifiers from the original filing have been omitted.

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Can't see the document? Open the complaint PDF in a new tab.


Who Is Covered and What the Lawsuit Seeks

The complaint proposes a nationwide class of U.S. purchasers of the 32-ounce "20G Protein" tubs, plus a New York subclass. It brings claims under New York General Business Law sections 349 (deceptive acts and practices) and 350 (false advertising), along with a claim for unjust enrichment.

The plaintiff seeks class certification, an injunction against the challenged labeling, and monetary relief — including actual and statutory damages under the New York statutes, treble damages, restitution, interest, and attorneys' fees. As with any newly filed complaint, those figures are requests, not awards. No money has been ordered and none is available now.

What Happens Next?

The case is at its earliest stage. No class has been certified, meaning the court has not decided whether the case can proceed on behalf of all affected purchasers. Chobani will have an opportunity to answer the complaint and may move to dismiss or narrow the claims — food-labeling cases of this kind are frequently contested on whether a reasonable consumer would actually be misled and on preemption by federal labeling law. If the case survives, the parties would exchange evidence in discovery before any class-certification decision. Many proposed consumer class actions are dismissed, narrowed, or settled before any payout, and there is no guarantee this case results in a settlement or recovery.

This case fits a broader wave of food and beverage lawsuits challenging label and nutrition claims, alongside actions like the Gatorade "Hydrates Better Than Water" lawsuit, the Royo keto bread calorie-labeling lawsuit, and the protein powder heavy-metals investigation.

Do I Need to Do Anything Right Now?

No. There is no claim form, no deadline, and no settlement fund at this stage. Consumers do not need to save receipts or contact the court. If the case ever advances to a settlement or judgment, class members would be notified about how to participate.

Frequently Asked Questions

Is there a Chobani settlement or claim form?
No. This is a newly filed complaint, not a settlement. There is no claim form and no guarantee that consumers will ever receive money from this case.

What does the lawsuit allege?
That Chobani's 32-ounce "20G Protein" tubs do not really provide 20 grams of protein per serving. The complaint says FDA serving-size rules call for a 1/2-cup serving here, which would yield about 17.78 grams (rounded to 18 grams), and that Chobani instead declares an inflated 3/4-cup serving so the figure reaches 20 grams.

Which products are named?
The 32-ounce multi-serving "20G Protein" Greek yogurt tubs, in the plain and vanilla varieties. The single-serving 6.7-ounce cups are not challenged.

Do the single-serving cups really have 20 grams?
According to the complaint, yes — the smaller cups are sized to hold enough yogurt to actually deliver 20 grams of protein, which is why they are not part of the lawsuit.

Who filed it and where?
A New York consumer filed Knox v. Chobani, LLC, No. 1:26-cv-05093-VEC, on June 16, 2026 in the U.S. District Court for the Southern District of New York.

Sources

• Class Action Complaint, Knox v. Chobani, LLC, No. 1:26-cv-05093-VEC (S.D.N.Y. filed June 16, 2026) — complaint PDF
• U.S. Food & Drug Administration, serving-size regulations, 21 C.F.R. §§ 101.9 and 101.12 (reference amounts customarily consumed)
• FDA, "Food Labeling: Serving Sizes of Foods That Can Reasonably Be Consumed at One Eating Occasion" (Guidance for Industry, Dec. 2019)
• Chobani official product pages and marketing materials cited in the complaint


About This Page

This page summarizes the class action complaint in Knox v. Chobani, LLC, No. 1:26-cv-05093-VEC (S.D.N.Y.). OpenClassActions.com is a consumer news site and is not a law firm, the plaintiff's counsel, Chobani, or a party to this case. The allegations in the complaint have not been proven in court. This page is for informational purposes only and does not constitute legal advice.


For more class actions keep scrolling below.
Status Complaint Filed — No Settlement, No Claim Form
Case Title Knox v. Chobani, LLC
Case Number 1:26-cv-05093-VEC
Court U.S. District Court, Southern District of New York
Date Filed June 16, 2026
Defendant Chobani, LLC
Class Status Not yet certified — early stage

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