Simply adding a serving of salad to your meal can help you eat 11 percent fewer calories, according to a 2012 Appetite study. Stick with voluminous, low-calorie fixings like fresh veggies and leafy greens and limit add-ons like nuts, seeds and cheese. If you’ll be making your salad into a main meal, add lean protein, such as skinless chicken, grilled shrimp or salmon, tofu or beans, to help you feel satisfied longer.