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Table 3 Example of the 2 variables added to distinguish between recipes and ingredients

From: Dietary exposure assessments for children in europe (the EXPOCHI project): rationale, methods and design

recipe ingred food items in database
204 22 macaroni, cheese sauce and ham prepared
204 21 ham, cooked
204 21 sauce (milk-based)
204 21 macaroni, boiled without salt
  1. recipe code: unique recipe code (a unique code for each different recipe of composed dish). ingred code: 22 was used to identify the recipe in the "ingred" variable; 21 was used to identify an ingredient of the recipe in the "ingred" variable.