Chobani 20g. Protein yogurt | Image by Valuetainment/X

The parent company of the Dannon and Oikos yogurt brands sued rival Chobani on Monday, accusing the company of allegedly misleading consumers about protein content in its 20G Protein line.

Danone alleges Chobani uses a 6.7-ounce serving size on 32-ounce containers of Chobani 20G Protein instead of the 5.3-ounce serving size Danone described as the industry standard, Food Dive reported.

Danone filed the complaint in federal court in Manhattan. The company alleges that Chobani inflates protein claims on labels for multiple-serving tubs of Chobani 20G Protein by using a non-standard serving size. Danone alleges Chobani positions the product as a rival to its Oikos Pro ultra-high-protein yogurt.

According to the lawsuit, Chobani could claim only 18 grams of protein per serving on its 32-ounce containers if it followed FDA serving-size rules for multi-serving containers, Food Dive reported. That amount would place the product closer to Danone’s lower-priced Oikos Triple Zero line, which contains 15 grams to 18 grams of protein per serving, the complaint states.

“If consumers knew the truth, instead of choosing the Chobani product, they would choose either Oikos Pro for a true ultra-high-protein option, or Oikos Triple Zero for a better price,” the complaint said, Reuters reported.

Danone seeks unspecified damages and changes to Chobani’s product labeling. The lawsuit claims Chobani’s practices amount to unfair competition and consumer deception.

Chobani did not respond to requests for comment, Reuters and Food Dive reported.

History Of Legal Disputes

This marks at least the fourth lawsuit between the two companies since 2016. Chobani has separately asked a judge to dismiss another Danone suit involving packaging and slogan claims for a cold brew coffee line.

Danone is based in Paris. Its U.S. subsidiary operates from White Plains, New York. Chobani is based in New York.

Food Dive reported that 70% of shoppers said they aimed to increase their protein intake in 2025, citing the International Food Information Council.

The dispute comes as food companies compete for shoppers seeking higher-protein products, including yogurt lines marketed around grams of protein per serving.