Two methods may be used:
A. By using the Component class
If a composite trade item contains components that do not have individual GTINs and the nutrient declaration for each component is clearly presented on the package, the nutrient declaration for each component should be registered individually.
B. Without using the Component class
If a composite trade item contains several sub-items that do not have individual GTINs, the nutrient declaration should be registered for all items together by calculating the total amount of each nutrient the trade item contains.
Read more about how to use the Component class in the Trade Item Information Guideline.
Note: Some data recipients are unable to receive data provided via the Component class. In such cases use method B above.