Kellogg Co. introduced Kellogg’s Special K Protein Shakes, which contain protein and fiber in a resealable plastic bottle. The shakes are available in Milk Chocolate, French Vanilla and Strawberry flavors. Each variety contains 10 grams of protein and 5 grams of soluble fiber polydextrose. Strawberry and French Vanilla contain 180 calories and Milk Chocolate has 190 calories. A four-pack retails for $6.29.Check out more new beverage products