Researchers from Wageningen University & Research (WUR) developed sum scores for the Food Frequency Questionnaire (FFQ) from adult participants. The FFQ consists of one basic questionnaire covering the macronutrient intake (heart of the flower) which has been assessed at 1A and three shorter questionnaires (the petals) covering (micro)nutrients assessed at 1B, 1C, and 2A. (sections: nutrition (Flower FFQ) and secondary & linked variables))

The FFQ sum scores can be requested in the Lifelines catalogue or by email (data@lifelines.nl).