July 29, 2025

K|U Files Class Action Lawsuit Against Drink LMNT for Deceptive Marketing

Cristina Pierson, partner at Kelley | Uustal, has filed a class action lawsuit against Drink LMNT, Inc., alleging deceptive marketing practices related to its electrolyte drink mix.

As alleged in the lawsuit filed in the U.S. District Court for the Southern District of Florida, LMNT misled health-conscious consumers by marketing its products as containing “No Artificial Ingredients,” “All Natural Ingredients,” “No Dodgy Ingredients,” and being “Paleo-Keto Friendly,” while concealing the substantial presence of maltodextrin, a highly processed synthetic ingredient with a glycemic index higher than table sugar.

The maltodextrin content (about 300–450mg per serving) in LMNT is fundamentally inconsistent with the product’s natural and diet-friendly claims.  It also exceeds the combined amount of potassium and magnesium: two of the mix’s reported primary electrolytes.

Despite the significant presence of maltodextrin, the ingredient was not disclosed in the product descriptions or packaging.

According to Pierson: “The class action challenges the deceptive marketing and product descriptions that were misleading to consumers, who paid a hefty purchase price for what was presented to them as an all-natural product.  Even since the recently forced confession by LMNT about the maltodextrin content, the company has failed to correct its marketing which still deceptively portrays the products.”

The lawsuit seeks to certify a national class, as well as Florida and Nevada state subclasses, to hold LMNT accountable for deceiving its consumers. Plaintiffs also seek to compel the company to present accurate product descriptions, which include the disclosure of its processed additive – maltodextrin.

The complaint demands a trial by jury and monetary damages, as well as injunctive relief on behalf of plaintiff and the proposed class.

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