nut: Nut (Nutrition Software) nut: nut: I have written open-source free nutrition software, NUT, which records nut: what you eat and analyzes your meals for nutrient levels in terms of nut: the "Daily Value" or DV which is the standard for food labeling in nut: the US. The program uses the free food composition database from the nut: USDA. nut: nut: nut: nut: