The more we process foods, the more nutrients we take out and then need to replace by vitamin and mineral (and herbal!) supplements. Many refining processes send toxins in the air all around us that assault our immune system. Synthetics, likewise, can interfere with our immune systems. In other words, we are suffering from taking away essentials from resources to make products for some convenience . Some would say convenience is killing us. We are also finding that overuse and misuse of some antibiotics have helped create some bacteria resistant to antibiotics.