Starbucks Faces a Lawsuit Over Its ‘Sugar-Free’ Drinks. The Real Risk Isn’t the Alleged Sugar Content

Starbucks has been sued by U.S. consumers who said the coffee chain falsely advertised eight protein beverages as "sugar-free" because they contain lactose, a naturally occurring sugar in milk.

The complaint says the protein drinks’ names are deceptive. The coffee giant argues that it has consistently disclosed their nutritional content.