Forbes gives a list of the worst "best-tasting" foods:

Nutritionists are to food what safety engineers are to the auto industry: If they had their way, eating wouldn't be any fun at all.

That's because for most people food is about taste first, and nutrition second. For nutritionists, unsurprisingly, it's the other way around. In fact, they'd be happy if most of us lived on bark and berries. Yet, as much as we might grumble about them, we should be grateful. After all, they are the ones who keep us from living exclusively on chicken wings, pizza and doughnuts.

Click here for the list. (Yara, "The Best (Worst) Foods", Forbes, Aug.2005)