Anything you can't find in the database can be added.
New Ingredient
Type a name in the Name box.
Enter the nutrient weight in grams.
Enter a Serving Size
Enter nutrients. You can enter as much or as little nutrient information as you wish from the items Nutrition Facts label or another source. It is certainly more helpful to enter as much as possible, but it is not necessary. Values are entered in one of two ways - either by typing in the numeric value or the %RDI value (ex: from a Nutrition Facts panel).