Bar none. .

"Now filled with great tasting yogurt filling!" says the box of Kellogg's Nutri-Grain Blueberry Yogurt Bars. One look at those plump blueberries splashing into a puddle of yogurt and you might expect a mouthful of blueberries and yogurt. You should be so lucky.

Take a peek at the ingredient list (reading glasses mandatory). The filling has more sugar (three teaspoons), partially hydrogenated cottonseed and soybean oil (three grams), and natural and artificial flavor (we're guessing less than a gram) than blueberries. Then comes yogurt ... or, to be more precise, nonfat yogurt powder that's been heat-treated--that means it has none of the "active cultures" that make yogurt yogurt.

Just how do the Blueberry (or equally bad Strawberry or Vanilla) "calcium-rich cereal bars with yogurt filling provide smart nutrition for those on the go"? Kellogg's adds calcium and vitamins. The "grain" in Nutri-Grain is largely white flour, which is why each bar has just a single gram of fiber.

Yes, the bar meets the American Heart Association's criteria for being low in saturated fat and cholesterol. (The AHA's name and the check mark in the red heart on the side of the box can't be bad for sales.) Then again, you'd expect a slab of white flour, sugar, vitamins, and additives to be low in fat. But that doesn't make it healthy.

Kellogg's: [phone].