Starbucks will soon be introducing a protein cold foam to its menus — and it contains between 15 and 18 grams of protein.

Most of the new menu items sampled by USA TODAY, including a new protein cold foam, will see additional testing before being released nationwide.

The viral world of protein coffee is heading mainstream, and Starbucks is ready to meet the moment by combining nutrition with nostalgia.Key PointsStarbucks is working on a banana-flavored cold foam that includes 15 grams of protein,