Groupe Danone is refuting allegations made against its US arm, The Dannon Co, over misleading advertising claims.

Discover B2B Marketing That Performs

Combine business intelligence and editorial excellence to reach engaged professionals across 36 leading media platforms.

Find out more


It was announced yesterday (23 January) that a class-action lawsuit had been filed against the company in California for the use of false advertising to promote its probiotic yogurt in the country.


In response, Groupe Danone today said they are “standing by the claims of its products and the clinical studies which support them”.


The company said: “All of Dannon’s claims for Activia and DanActive are completely supported by peer-reviewed science and are in accordance with all laws and regulations. Dannon’s advertising has always been and will continue to be absolutely truthful and we will vigorously challenge this lawsuit.”


Dannon claim to make “all scientific studies about its products available to the public following the established method of peer-review and publication, available on the company’s website.”

GlobalData Strategic Intelligence

US Tariffs are shifting - will you react or anticipate?

Don’t let policy changes catch you off guard. Stay proactive with real-time data and expert analysis.

By GlobalData

The lawsuit cited scientific reports showing there was no conclusive evidence that the bacteria prevented illness or was beneficial to healthy adults, and that Dannon knew this.


Probiotics are just beginning to take off in the US, a market that has lagged behind Western Europe and Japan in its awareness of the category.


Scientific approval and recognition in Japan and Europe had provided the foundation on which probiotic products in those markets could grow. In the US, the scientific community had been initially reluctant to embrace the idea.


However, that resistance is slowly being broken and the US is becoming a more fertile ground for probiotics. In the last year, General Mills has also launched probiotic products and Yakult is being rolled out into the US mainstream for the first time.


See the just-food blog for our thoughts on Danone’s fight.

Just Food Excellence Awards - Nominations Closed

Nominations are now closed for the Just Food Excellence Awards. A big thanks to all the organisations that entered – your response has been outstanding, showcasing exceptional innovation, leadership, and impact.

Excellence in Action
Winning five categories in the 2025 Just Food Excellence Awards, Centric Software is setting the pace for digital transformation in food and FMCG. Explore how its integrated PLM and PXM suite delivers faster launches, smarter compliance and data-driven growth for complex, multi-channel product portfolios.

Discover the Impact