Adherence
Offering explicit swaps to lower-saturated-fat alternatives reduces the percentage energy from saturated fat in the shopping basket, but is less effective than altering the default product order.
If you are designing an online grocery platform, offer explicit swaps to lower-SFA alternatives when a user selects a high-SFA product. Ensure the swap matches the brand, weight, and price as closely as possible to increase acceptance. Note that this method is less effective than simply sorting products by health metrics.
offering an explicit swap with lower SFA (n = 279) reduced it by − 2.0% (95%CI: − 3.3 to − 0.6)
Why this rating
RCT with large sample size, simulated environment.
Source
Prominent positioning and food swaps are effective interventions to reduce the saturated fat content of the shopping basket in an experimental online supermarket: a randomized controlled trial
Dimitrios A. Koutoukidis et al. · International Journal of Behavioral Nutrition and Physical Activity · 2019
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