The Basics of the Nutrition Facts Label Step 4: Check Out the Nutrition Terms. Low calorie: 40 calories or less per serving. Low cholesterol: 20 milligrams or less and 2 grams or less of saturated fat per serving. Reduced: At least 25% less of the specified nutrient or calories than the usual product. Good source of: Provides at least 10 to 19% of the Daily Value of a particular ...