Such a delicacy should never go anywhere near a vulgar source of heat such as cocoa or a campfire. Either shoppers at natural-foods stores are complete dupes, or else we're losing our collective sense of proportion. A few chemical-filled marshmallows once or twice a year on a camping trip isn't going to kill you, no matter how much tetrasodium pyrophosphate they have in them. Unfortunately, it's all part of a trend toward the total healthification of our food supply. Sour cream is low fat.
Bread has no preservatives and tastes great until the next day.
Healthy cheese puffs are an oxymoron, and they taste like it, too. We all make our compromises.