WTP is an financial idea used to guage customers’ demand for a product [53]. In our systematic overview, 3 research thought of WTP of much less healthful merchandise, suggesting that NS considerably diminished the WTP for much less healthful merchandise by 16%, however no important impact was noticed for textual NW or HW. One other 3 research investigated the WTP for extra healthful merchandise however didn’t discover proof for change in WTP when labelled with TLS, textual NW, or HW (S1 Data).
A systematic review and network meta-analysis
Modifications in customers’ buying and consuming behaviour or intentions
The NMA revealed that every one colour-coded and warning labels had been considerably related to adjustments in buying behaviour. Warning labels even have a big impact on buying intention (Fig 4 and S3 Table). NS and NW had been each related to an rising total healthfulness of merchandise bought. TLS, NS, and NW all had been related to buying decrease power, sodium/salt, whole fats, or saturated fats (Figs 5 and 6 and S3 Table). Just one research seemed on the end result of consumption (S3 Table), thus we didn’t embody it in our meta-analysis. This research prompt that TLS was not considerably related to change in power consumption.
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