Here's an interesting fact. And a good reason to stay away from those packaged "low-fat" snacks.
"Even those of us trying to picks "healthy" snacks are often fooled by packaging. For example, Cornell University researchers found that people tend to eat an average of 28 percent more calories when snacking on low-fat foods. After all, flavor has to come from somewhere, and when food marketers eliminate fat, they often make up for it with sugar. "
Check out the Survive any snack bar list from Men's Health