2.1. Study Design

The study was designed to validate the EAT5 FFQ for measuring intake of nutrients (energy, carbohydrate, fiber, total NSP, soluble NSP, and insoluble NSP) and food groups (e.g., ‘Higher fiber more healthy cereals’, ‘Higher fiber less healthy cereals’, ‘Lower fiber more healthy cereals’, ‘Lower fiber less healthy cereals’, ‘Nuts and legumes’, ‘Fruits’, ’Vegetables’, ‘Potatoes and hot chips’, ‘Yoghurt’). Parent and child participants attended two appointments four weeks apart. At the first appointment, the EAT5 FFQ and socio-demographic questionnaire were completed by the parents, and anthropometric measurements of the child were obtained. A 3-day WDR was completed over the following four weeks. At the second appointment, the EAT5 FFQ was administered again so that reproducibility could be assessed. The FFQs asked about intake in the past month.