Where does our food come from, Nature or Science? Learn about the most important key to the nutritive value in our food. Gary shows you the significant differences between various food categories. What is biotech and nanotech food? We will also talk about the "new foods" in supermarkets and why many familiar foods are going to be replaced. Learn the meaning of certifications to look for on food product labels (including a very special symbol), and how to decode produce stickers. Understand how our food choices are critical for survival.