This study examines the impact of food label use on diet quality of Americans. Using an endogenous switching regression model, results indicate that label use improves diet quality by as much 14 points on a 100 point Healthy Eating Index scale. The analysis also was conducted for each type of information contained on the labels: list of ingredients, nutrient content health claims, nutritional panel, serving size, and health benefit statements. Use of health benefit statements on food labels provides the highest level of improvement in diet quality.