The underlying food composition data used for the Xyris food group system is AUSNUT 2011-13, which are the official food composition tables from Food Standards Australia New Zealand (FSANZ).
Xyris has developed a food description database of generic foods, AusFoods, that is a user-friendly wrapper for AUSNUT 2011-3. AusFoods provides a set of food names that is more complete and structured than the ‘raw’ AUSNUT foods. Each AusFood food is mapped to a corresponding AUSNUT 2011-13 food.
Xyris has also developed a database of Australian commercial food products, AusBrands. Each of these commercial products is mapped to an AusFoods generic food (and thus back to AUSNUT 2011-13), allowing full nutrient analyses (beyond the nutrients on the label) including food group analyses, for the AusBrands foods.