Starbucks is stirring things up with a new banana-flavored protein cold foam, currently being tested at just five U.S. locations. It’s part of a bigger menu makeover called the Starting Five, which also includes new drinks, croissants baked in-store, and a 30% trim to the overall menu. The coffee giant hopes this protein-packed pivot will help rebound sluggish sales and bring customers back with something fresh (and frothy). So yes, your morning latte might soon come with a side of gains.