Briefing: Magically Nutritious

Trix isn't just for kids anymore. Over the next three months General Mills, the nation's No. 2. cereal maker (behind Kellogg), will convert into whole-grain products all its "Big G" cereals, including high-sugar brands like Trix, Cocoa Puffs and Lucky Charms. The company says it is capitalizing on healthier eating habits and signs that the low-carb craze, which shuns whole grains, may have peaked. But isn't General Mills' Total for the high-fiber crowd? And do kids--and adults--want the Wheaties experience as they eat their Cocoa Puffs? General Mills says the treats won't lose their taste. "We did tests with over 9,000...