Naturally and artificially flavored. 5 g protein. Takes the edge off hunger (Special K2O Protein Water Mix contains 5 g protein and 5 g fiber per packet. Special K Protein products are designed to promote a reduced feeling of hunger when part of a diet high in protein and fiber.). The way to stay on track and help manage your weight loss goals. Keep temptation away with refreshingly satisfying Special K2O Protein Water. It's a deliciously easy way to help manage your weight.