Concentrations in food is used by the human intake model. Food are separated into the following categories:
Fish - Bass, Perch, Salmon etc. Given by the Fish model
Fruits - Apple, Peach etc. grown locally. Given by the Fruit tree model
Grain - Wheat, Rye etc. Given by the Grain model
Leafy vegetables - Given by the Leaf model
Tubers - Potato, etc. Given by the Tubers model
Roots - Carrots etc. Given by the Root model.
External food - any type of food which is not modelled by the software.