Study Evaluates Discrepancies in Dietary Intake and Purchase Data Among UK Shoppers
A recent study, known as FIO-STRIDE, has been conducted to assess the differences between dietary intake and purchase data among UK shoppers, focusing on individuals with varying weight statuses. The study utilized data from the STRIDE study, which involved 1,788 participants who were primary shoppers. These participants provided demographic and anthropometric information and consented to link their supermarket transaction records to their weight status. The study aimed to evaluate the agreement and bias between purchase and consumption data using calorific screening thresholds. Participants completed a 170-item food frequency questionnaire (FFQ) to report their dietary intake over three months. The study found discrepancies between estimated individual nutrient intake and purchased nutrients, particularly among those with higher body mass index (BMI). 
