say you’re asserting in your case that the industry caused you to lose control of your eating by gaining weight. Sure, the calories you ate mattered, but so did the calories you should have burned off, but didn’t, the defense attorney will say. How can you blame the food companies for obesity when the number of children who walk to school fell from 20 percent in 1997 to 12 percent in 2001? Or when the national pastime, watching TV, is so sharply correlated to weight gain?