
Federal Suit Challenges Starbucks 'Sugar-Free' Protein Drinks Over High Sugar Content
A federal class-action lawsuit alleges that Starbucks mislabels eight protein beverages as 'sugar-free' despite containing 13 to 21 grams of sugar per serving. Filed by Hagens Berman on behalf of three consumers, the suit claims the labeling violates federal regulations and misleads health-conscious buyers. Starbucks defends its position, stating the sugar originates from protein-boosted milk rather than added sweeteners, and asserts it clearly discloses nutritional data. The company, which introduced these drinks in September 2025 to compete with rivals like Dutch Bros, intends to vigorously contest the claims of false advertising.











