“…We know that the low intakes are not explained by lack of knowledge of the guideline – in a questionnaire as part of a fruit and vegetable intervention study by Rooney et al . (), 100% of participants claimed to be aware of the 5‐A‐DAY guideline, and 91% correctly identified what foods were classed as fruit and vegetables. However, only 37% of participants correctly identified the correct portion size of individual fruit and vegetables, with participants finding the portion size of combinations of fruit and vegetables the most difficult to identify, which may have an impact on their ability to accurately report intakes.…”