Participants will be assigned to one of four conditions: (i) nutrient warning labelling and no taxation, (ii) nutrient warning labelling and taxation, (iii) current traffic light labelling and taxation or (iv) a control condition (current traffic light labelling and no taxation). Participants will complete a food ordering task using a simulated online supermarket resembling a major UK retailer (Tesco), before purchasing their selected items for delivery/collection via the retailer. Food choices will be recorded, and participants will self-report intake of purchased food items.
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Nutritional quality of food order
Timeframe: Survey 1, immediately after the intervention.
Likelihood of purchasing a less healthy option
Timeframe: Survey 1, immediately after the intervention.