The source of the food facts above was the USDA National Nutrient Database.
Our site uses the same standards for rounding nutrient values as food labels you'll find on cereal boxes and milk cartons. You can find these rules here: Nutrition Label Rounding
Percent daily values
The "% Daily Values" numbers on the Apple Juice nutrition label above are based on a 2000 calorie diet. If your Daily Caloric Intake is higher or lower than 2000, you should adjust these values accordingly.
RecipeBuilder allows you to create a custom nutrient label for all of the ingredients for a recipe. Try it here.