Sustainable food choice motives: The development and cross-country validation of the Sustainable Food Choice Questionnaire (SUS-FCQ)

•The Sustainable Food Choice Questionnaire (SUS-FCQ) is a reliable instrument.•The SUS-FCQ distinguishes ‘general sustainability’ & ‘local and seasonal’ motives.•The SUS-FCQ is a valid instrument and suitable for country comparison.•The SUS-FCQ can be used as an addition to the Food Choice Questionnaire.•The SUS-FCQ can reveal the importance of sustainability motives in food choices.