Everyone loves a good “unhealthy” snack like chips and soda once in a while, but according to the Food Politics blog, “junk” food companies may be in trouble due to the new trend of healthy foods. In fact, many companies, including Pepsi and Kraft are “healthifying” their products by adding whole grains and converting products to natural ingredients. But Marion Nestle raises a good question about the new health trend: Can processed food ever really be healthy? What makes a food healthy? What do you think?