A systematic review and network meta-analysis

Conclusions

Our systematic overview supplied complete proof for the impression of colour-coded labels and warnings in nudging customers’ buying behaviour in the direction of extra healthful merchandise and the underlying psychological mechanism of behavioural change. Every sort of label had completely different attributes, which needs to be considered when making front-of-package vitamin labelling (FOPL) insurance policies based on native contexts. Our research supported necessary front-of-pack labelling insurance policies in directing customers’ alternative and inspiring the meals business to reformulate their merchandise.

Creator abstract

Why was this research performed?

Interpretive front-of-package labelling is taken into account an economical technique to advertise a extra healthful weight-reduction plan and mitigate the burden of non communicable illnesses (NCDs), and colour-coded labels and warning labels are essentially the most adopted interpretive front-of-package labelling schemes worldwide.
Previous to this research, proof on the impression of every sort of colour-coded labels and warning labels on modifying customers buying behaviour was combined.
The feasibility and sure effectiveness of every label sort utilized in numerous contexts was unclear.

What did the researchers do and discover?

This community meta-analysis summarised the at present accessible 118 peer-reviewed research to replace data of essentially the most mainstream interpretive front-of-package vitamin labelling (FOPL) schemes.
We discovered that the site visitors gentle labelling system (TLS), Nutri-Rating (NS), nutrient warning (NW), and well being warning (HW) had been all in a position to direct customers in the direction of extra healthful buying behaviour.
Color-coded labels (TLS and NS) carried out higher in selling the acquisition of extra healthful merchandise, whereas warning labels (NW and HW) had the benefit in discouraging unhealthful buying behaviour.
The distinction in customers’ behaviour may very well be defined by completely different underlying psychological mechanisms for every label.

What do these findings imply?

We offer extra complete proof to information policy-makers in selecting the optimum front-of-package labelling insurance policies. This proof synthesis could inform additional generalisation of necessary front-of-package labelling schemes and assist to mitigate the burden of NCDs.
Future research ought to deal with the impression of FOPLs on dietary consumption in people, and industrial reformulation on the inhabitants degree, particularly in real-world settings and over an extended timeframe. This may present essential, sturdy, and complete proof to information coverage making.

Quotation: Music J, Brown MK, Tan M, MacGregor GA, Webster J, Campbell NRC, et al. (2021) Affect of color-coded and warning vitamin labelling schemes: A scientific overview and community meta-analysis. PLoS Med 18(10):
e1003765.

https://doi.org/10.1371/journal.pmed.1003765

Educational Editor: Gaston Ares, Universidad La Republica, URUGUAY

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