Seattle-based coffee giant Starbucks is facing a proposed class-action lawsuit filed in U.S. District Court in Seattle, accusing the company of misleading customers over its line of “sugar-free” protein drinks. The legal complaint highlights eight specific beverages including hot and iced versions of the Sugar-Free Vanilla Protein Latte, Sugar-Free Caramel Protein Latte, Sugar-Free Vanilla Protein Matcha, and Sugar-Free Caramel Protein Matcha which plaintiffs argue contain substantial amounts of sugar despite their prominent “sugar-free” labeling. Attorneys from Hagens Berman, the firm leading the lawsuit, noted that a 20-ounce Venti serving of these beverages can contain between 13 and 21 grams of sugar making some options pack more sugar than a standard Reese’s Peanut Butter Cup, which contains roughly 16 grams.
According to the legal filing, consumers purchasing items labeled “sugar-free” reasonably expect the entire beverage to contain zero or negligible amounts of sugar. Instead, plaintiffs argue that while Starbucks uses sugar-free syrups for flavoring, the protein-boosted milk used as the drink base inherently contributes significant sugar content. Lawsuits assert that menu boards and marketing materials emphasize the “sugar-free” descriptor in a way that deceives health-conscious buyers, diabetics, and individuals on low-sugar diets who rely on accurate menu classifications.
Starbucks has strongly pushed back against the allegations, maintaining that its nutritional disclosure practices are completely transparent and compliant with food regulations. A company spokesperson stated that Starbucks does not add refined sugar to these specific beverages and that the sugar content originates naturally or from the protein-boosted milk used in the recipe. Starbucks reiterated that complete nutritional breakdowns, ingredient lists, and customization details are readily accessible on its website, mobile app, and printed store menus.
The lawsuit seeks financial damages on behalf of U.S. consumers who purchased the beverages under the belief that they were sugar-free, alongside an injunction requiring Starbucks to cease using “sugar-free” descriptors on drinks containing measurable sugar. As consumer protection laws scrutinize food and beverage marketing more closely, this case highlights the fine line between describing single ingredients (like sugar-free syrup) and branding an entire crafted beverage as “sugar-free”.
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