encouraged to buy prosed food, buy processed foods. >> how the supermarkets are laid out influences what we buy and what we eat. >> my friend monica mills is the former executive director of the nonprofit organization food policy action. >> you'll see all the beautiful fresh food, everything looks so beautiful, and fresh, and delicious. it is all on the perimeter of the grocery store. >> but the most trafficked part of the store, the center aisles, are filled with cheap fast temptation. >> everything on the cereal aisle is so processed. we have jello. we have easy seasonings for tacos and what in the world? i haven't seen these for a long time. mashed potatoes in a bag. >> 70%, 70, of the american diet, is made up of processed foods. it's a convenience that comes at a cost. >> there is added sugar, added salt, and added fat.