Many health-conscious packaged foods that seem dangerous contain fillers, preservatives and other unhealthy ingredients you don’t want in your daily diet. It is always preferable to choose products that have only a handful of ingredients, all of which should be recognizable. If not, there is a good chance the ingredient is less natural food and more man-made chemical.
A scientific test is whether or not you can easily pronounce the ingredient. If you feel like you need specialized knowledge to pronounce it properly, such doubtful ingredients are worth avoiding.