Starbucks hit with lawsuit over sugar content as experts reveal chain's most sugary drinks

Starbucks is facing a lawsuit over its "sugar-free" protein drinks, with consumers alleging some contain nearly as much sugar as a candy bar.

The proposed class-action lawsuit, filed Oct. 2 in federal court in Washington state, targets eight hot and iced Starbucks protein beverages, including its Sugar-Free Vanilla Protein Latte, Sugar-Free Caramel Protein Latte and protein matcha drinks.

The beverages contain between 13 and 21 grams of sugar in a venti-sized serving, according to the lawsuit...