Is your house making you fat? We know ice cream, pizza and milkshakes can make us fat, but how can a house do that? It’s all in the floor plan, according to University of Notre Dame and Cornell University researchers. Open floor plans that remove visual and physical barriers between people and food may contribute to overeating. The opposite also holds true. People who live in homes with enclosed kitchens consume fewer calories. A study found that when folk ate in the open plan within view of the kitchen and buffet table, they were more likely to go back for seconds — and eat more food. On average, they made about 10 percent more serving trips in the open floor plan than the closed plan. And each time they got up to get more food they ate, on average, about 170 additional calories. An easy and painless way to reduce the number of calories you eat could be as simple as facing away from the serving area.