In September 2018, a class-action lawsuit was filed against Core Nutrition for allegedly falsely advertising that Core Hydration bottled waters provide superior hydration than other bottled waters due to the pH level of Core Hydration products when, according to plaintiffs, such claims are not true and the company does not have adequate scientific evidence to support such claims. (Duffy et al v. Core Nutrition, LLC, Case No. 18-cv-5188, E. D. NY.)

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