The color of your plate may seem like the last thing you'd need to consider when it comes to losing weight, but it can play a surprisingly big role in how much you eat, according to a 2012 Cornell University study. Researchers discovered that when the food and plate color have low color contrast (like pasta with red sauce on a red plate), diners served themselves 22% more from a buffet than when there was a higher color contrast (like pasta with red sauce on a white plate).