I think Marion Nestle said it well here:
Making snacks with natural ingredients doesn't necessarily make them healthy, nutritionists and industry critics caution, even if they are potentially less bad. That includes potato chips, which contain a lot of fat and salt. The revamped Frito-Lay's chips' fat and sugar content hasn't changed much.
"Foods that are less loaded with sugar, fat and salt, that's what's important. Everything else is marketing," says David Kessler a former Food and Drug Administration commissioner and snack-industry critic.
But isn’t a “healthy” processed snack food an oxymoron? They can tweak and tweak the contents, but these products will still be heavily processed. Too much evidence now concludes that marketing a product as “healthy” or “natural” makes people think it has no calories. And as I keep saying, just because a processed food is a little bit less bad than it used to be, doesn’t necessarily make it a good choice.