Special K is a Kellogg's cereal brand that became the first high-protein cereal in the 1950s. It has since expanded its product line to include bars, shakes, and other items. Special K targets women for weight loss and fitness goals. It has a 34% market share but faces competition from General Mills, Nestle, and Quaker. Special K's marketing emphasizes the products' role in helping women achieve their fitness goals through advertising, social media, and challenges. The document recommends expanding Special K's target market to include men while retaining female customers.