Nutrition-related health taxes: setting expectations.
Nutrition-related health taxes: setting expectations.
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DOI:
10.1016/s2213-8587(21)00325-9
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发表时间:
2022-03
期刊:
影响因子:
--
通讯作者:
Kaufman JS
中科院分区:
文献类型:
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作者:
Miranda JJ;Thow AM;Cárdenas MK;Corvalán C;Barrientos-Gutiérrez T;Kaufman JS
Comment94 www. thelancet. com/diabetes-endocrinology Vol 10 February 2022 issue is the adaptive response by industry. As the tax effects can be observed only if there is an underlying change in consumption, industry responses can be strong enough to neutralise the anticipated effects, therefore resulting in the tax being ineffective. This can, in turn, be used to suggest that interventions do not work, when the real question could be whether the intervention was strong enough to change the landscape to a point in which industry was unable to buffer it. In addition, although taxation might be particularly visible and controversial, it is just one of several interventions for the prevention of obesity and nutritionrelated non-communicable diseases. Interest in frontof-pack (FOP) labelling policies, based on comprehensive nutrient profiling models, is rapidly growing. There is great potential for linking labelling and tax interventions to enhance the impact of both; for example, using the FOP label or the same underlying nutrient profiling model as the basis for broad-based taxation of unhealthy foods. 8 Notably, many of the issues raised in this Comment also apply in the evaluation of FOP labelling interventions and, for that matter, to any complex population-wide public health intervention. It is important to recognise that, with any such intervention, different policies in different contexts might not be identical. In the case of FOP labelling policies, the warning labels have, for example, different texts or threshold values, and are mandatory in different spaces (eg, schools, media). Some of the impacts of FOP labelling are related to the way it is intertwined with other policies, including, for example, the banning of products with FOP labels in schools and channels of advertisement.Nutrition-related health taxes can be very effective. In the future, many more countries will engage in similar initiatives to counter the global pandemic of obesity and diet-related conditions. Rather than jumping the gun and claiming that taxes work or do not work, here we raise several questions to critically inform how the evidence should be generated and summarised over time. The evaluation of nutrition-related health taxes will most likely not be amenable to being studied under traditional RCTs. The fields of public health and economics will have to move beyond their reliance on RCTs as the sources of best evidence, and continue providing robust methods, 9 including natural experiments and quasi-experimental methods, and frameworks that favour theory-driven evaluations of these policies in real-world scenarios, 10