Phyllis C. Wells filed a lawsuit in the U.S. District Court in Boston against Dunkin' Brands, alleging deceptive advertising of its Zero energy drinks. The suit claims the beverages are marketed as sugar‑free while containing allulose, a type of sugar, and that she consumes two to three drinks each week. Wells argues that the use of the low‑calorie sweetener allulose contradicts the no‑sugar claim made for the product.
Dunkin' promotes its Zero energy drinks as having no sugar, yet the drinks rely on allulose for sweetness, which the plaintiff contends is still a form of sugar.