Filed in the US District Court for the Central District of California by California consumer Daniel Ruchman, the lawsuit alleges independent laboratory testing of three flavors found protein levels ranging from 19.69 g to 20.69 g per serving.

The complaint alleges the products violate federal labeling requirements and California consumer protection laws, stating that the beverages are "misbranded and falsely advertised because the products contain less grams of protein than is claimed on the Products' labels."