Table 4.

Issues with dietary decision trees or feedback messages.

Issue with decision trees or feedback messages	Decision trees affected
Algorithm did not capture all food groups contributing to the nutrient intake.	SFAa
Sometimes, the feedback messages are not specific to the participant’s diet, that is, the participant’s main sources of the nutrient may not have been identified in the feedback message.	SFA, salt, total fat
Feedback messages are repeated for different food groups.	Salt
Messages are not always relevant for vegetarians.	SFA, salt, omega 3

^aSFA: saturated fatty acid.