What if the participants answer doesn correspond to the FFQ timeframe?
As the FFQ is asking about food intake over the previous 12 months, if a participant consumes a food item, for example 10 times per year, this would be considered as ‘less than once a month’. If a participant were to consume a food everyday for only a month, approximately 30 times a year. These need to be divided over the 12-month period, and the answer would be ‘1 to 3 times per month’.
