The main legal question in the Gatorade class action, which was brought in the Southern District of New York on May 21, 2026, is surprisingly straightforward: may a sports drink manufacturer claim that its product “hydrates better than water” without providing evidence? The answer should be clear, but Gatorade and its parent company, PepsiCo, have been promoting variations of this claim in various kinds of advertising for decades without being successfully prevented by legal action until now.
The plaintiffs in Leam et al. v. PepsiCo specifically reference a post on the company’s website titled “How Gatorade Works & Why It Can Hydrate Better Than Water” in their lawsuit. The 29-page document refers to the hydration claim as “proven false” and requests that a federal judge take appropriate action.

In reality, Gatorade’s existence is not threatened by the science underlying sports drinks. For athletes who participate in lengthy, hard exercise, the idea of an electrolyte drink—sugar, sodium, and carbs restoring what’s lost through sweat—has real merit. Sports beverages can help with certain ailments, according to medical professionals. The application and widespread marketing of the claim that it “hydrates better than water” present scientific challenges. There is a case can be made for electrolyte replacement for a runner who trains hard for two hours.
The research repeatedly indicates that water is fine for someone going for a 30-minute stroll or a leisurely bike ride, and that the extra sugar in a sports drink is working against hydration goals rather than for them. According to the lawsuit, the label claim overstates what science truly supports and deceives consumers who don’t fit into the specific group where the drink performs as promoted when it is applied generally to all products and all users.
In some respects, the claim about citric acid is more intriguing from a technical standpoint. The front of the label for Gatorade products with reduced sugar reads, “no artificial flavors, sweeteners, or colors from artificial sources.” The reverse label lists citric acid as the third ingredient. According to the lawsuit, citric acid used in the production of food and beverages is usually made by industrial fermentation, which is a synthetic process that involves the mold Aspergillus niger converting sugars into citric acid under controlled industrial conditions.
As a result, it is considered an artificial ingredient rather than a natural one. This legal argument is not new; food and beverage firms who label their products as “all natural” but contain industrially manufactured citric acid have been sued in a number of similar cases. Due in part to the prominent placement of the “no artificial flavors” claim on the label, Gatorade is the most well-known brand to be caught in this particular wave.
It is more difficult to ignore the context provided by the legal background of the 2026 action. In 2017, California fined Gatorade $300,000 and mandated that the business cease demeaning water in its advertising after Usain Bolt’s “Bolt!” mobile game portrayed water as detrimental to sports performance. A case claiming that Gatorade bars sold as muscle-building aids had more sugar than a Snickers bar was dismissed with prejudice in the 2025 protein bar settlement.
Over the course of around ten years, there have now been three separate instances of Gatorade advertising claims being legally contested. These occurrences have included three different product categories and three different kinds of purportedly deceptive marketing. It’s difficult to ignore the pattern, which begs the issue of whether these are sporadic examples of too aggressive marketing text or something more fundamental about the way the company develops its advertising approach.
Whether the science of sports drink hydration, specifically in relation to the “better than water” claim, can withstand a Daubert challenge on expert testimony and whether the citric acid argument satisfies the legal standard for what constitutes an artificial ingredient under relevant state consumer laws will determine whether this lawsuit is successful.
Both inquiries are truly open-ended. As of late May 2026, PepsiCo had not made any public remarks regarding the filing. The following stages will take months or years to complete: motion practice, class certification, and finally the merits. Meanwhile, the bottle still has the label on it.
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