The Importance of Reading the Food Label and Nutritional Facts The Importance of Reading Food Labels This information does two things: The Basics of Reading a Nutrition Label 1. Serving Size 2. Calories per Serving 3. Percent Daily Values 4. Nutrient Contents 5. Vitamins & Minerals 6. Ingredient List Putting it All Together Reading food labels makes a big difference when it comes to your family's health.