How Special K Became Kellogg's Best-Selling Product

Simple Cereal Evolves Into Comprehensive Diet Plan Product Line

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NEW YORK ( -- It's no small feat that Special K has become the best-selling brand of Kellogg, a company that markets more than 180 products and does nearly $10 billion in annual sales. Ad Age reporter Stephanie Thompson explores how Special K has evolved from a simple breakfast cereal to a megabrand dieting program that competes with Weight Watchers and Jenny Craig.

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