1^Analytical or derived from analytical
4^Imputed
5^Value manufacturer based label claim for added nutrients
6^Aggregated data involving combinations of source codes 1 &12
7^Assumed zero
8^Calculated from nutrient label by NDL
9^Calculated by manufacturer, not adjusted or rounded for NLEA
11^Aggregated data involving comb. of codes other then 1,12 or6
12^Manufacturer's analytical; partial documentation
13^Analytical data from the literature, partial documentation
