We also have very adaptable immune systems which when not compromised are very effective at protecting the organism. However, it's been shown that quite a few things in our everyday existence can compromise that immune system -- white processed sugar for instance. Then there are the alternatives of Aspartame and Saccharin which are unnatural to say the least. How are these chemicals processed in the human body? They mimic sugar in some respects but they don't burn like sugar. So when these chemicals start roaming around, what do our bodies do with them? I use natural unprocessed cane sugar (dark brown with the molasses still resident) or honey.

For eons our bodies evolved without processed sugar of any type. If we wanted sweet we added fruit and berries to whatever we were eating or just ate them raw. Our diet was much simpler. Simple diets still work, but the typical American diet is one of processed food. I was reading an article about MRE pocket rations and found a link on how they are processed to be stable for such a long time. Interesting read, but is it really nutrition?