In 2004, University of Washington obesity researcher Adam Drewnowski discovered that consumers on a fixed budget can buy a lot more calories from processed foods and soft drinks than they can from fruits, vegetables, and whole grains. He found that a single dollar could purchase 1,200 calories of cookies or potato chips, but only 250 calories of carrots. One dollar could buy 875 calories of soft drink but only 170 calories of orange juice. Research suggests that the poorer you are, the more likely you are to be obese. To further examine the economic and calorie choices consumers face at …