Prospects of Food Taxes for Planetary Health: A Systematic Review of Modeling Studies

Overview

Journal Nutr Rev

Publisher Oxford University Press

Specialty Nutritional Sciences

Date 2024 Sep 16

PMID 39283704

Authors

Agota Meszaros

Norbert Dosa

Anna Peterfi

Krisztian Horvath

Zsofia Szarvas

Jeremias M Balogh

Balazs Munkacsy

Zoltan Voko

Affiliations

Soon will be listed here.

Abstract

Objectives: The aim of this study was to analyze the modeling methodologies of fiscal policies on food with health or environmental outcomes.

Background: Evidence suggests that fiscal policies on food can contribute to addressing the growing burden of noncommunicable diseases and climate change. These policies should be modeled in advance to see the implications for the environment and health.

Methods: A systematic review was conducted of studies that modeled fiscal policies on the food groups targeted by the EAT-Lancet Commission and examined their health or environmental outcomes. The Scopus and PubMed databases were searched on November 30, 2021. The records were double-screened and data on modeling methods were extracted from the included studies.

Results: A total of 55 studies were included in the review. The most frequently modeled interventions were fruit and vegetable subsidies (n = 19) and carbon taxes on food (n = 17). One study also included a consumer education campaign to enhance the effect of fiscal policy. The outcomes are highly sensitive to consumption change and price elasticities. None of the studies modeled the health effects of environmental outcomes.

Conclusions: A model that covered all the relevant aspects of the issue was not found. Some parts were missing from all the included models. It is advisable to model the stability of the amount of diet consumed, either by keeping the amount of food in the diet stable or by taking a more conservative approach and keeping the consumed calories stable. It is preferable to keep the included diseases and environmental boundaries broad to have more valid outcome estimates on this complex issue. A more comprehensive understanding of fiscal policies would allow us to better anticipate the impact of our actions and inactions and thus could lead to more sophisticated measures taken by policymakers.

Systematic Review Registration: PROSPERO registration no. 2022 CRD42022291945/.

References

Brimblecombe J, Ferguson M, Chatfield M, Liberato S, Gunther A, Ball K . Effect of a price discount and consumer education strategy on food and beverage purchases in remote Indigenous Australia: a stepped-wedge randomised controlled trial. Lancet Public Health. 2017; 2(2):e82-e95. DOI: 10.1016/S2468-2667(16)30043-3. View

Robinson E, Khuttan M, McFarland-Lesser I, Patel Z, Jones A . Calorie reformulation: a systematic review and meta-analysis examining the effect of manipulating food energy density on daily energy intake. Int J Behav Nutr Phys Act. 2022; 19(1):48. PMC: 9026919. DOI: 10.1186/s12966-022-01287-z. View

Holm A, Laursen M, Koch M, Jensen J, Diderichsen F . The health benefits of selective taxation as an economic instrument in relation to IHD and nutrition-related cancers. Public Health Nutr. 2013; 16(12):2124-31. PMC: 10271833. DOI: 10.1017/S1368980013000153. View

Briggs A, Kehlbacher A, Tiffin R, Garnett T, Rayner M, Scarborough P . Assessing the impact on chronic disease of incorporating the societal cost of greenhouse gases into the price of food: an econometric and comparative risk assessment modelling study. BMJ Open. 2013; 3(10):e003543. PMC: 3808835. DOI: 10.1136/bmjopen-2013-003543. View

Blakely T, Cleghorn C, Mizdrak A, Waterlander W, Nghiem N, Swinburn B . The effect of food taxes and subsidies on population health and health costs: a modelling study. Lancet Public Health. 2020; 5(7):e404-e413. DOI: 10.1016/S2468-2667(20)30116-X. View

Baum F, Fisher M . Why behavioural health promotion endures despite its failure to reduce health inequities. Sociol Health Illn. 2014; 36(2):213-25. DOI: 10.1111/1467-9566.12112. View

Kim D, Wilde P, Michaud D, Liu J, Lizewski L, Onopa J . Cost Effectiveness of Nutrition Policies on Processed Meat: Implications for Cancer Burden in the U.S. Am J Prev Med. 2019; 57(5):e143-e152. PMC: 6803059. DOI: 10.1016/j.amepre.2019.02.023. View

Cobiac L, Tam K, Veerman L, Blakely T . Taxes and Subsidies for Improving Diet and Population Health in Australia: A Cost-Effectiveness Modelling Study. PLoS Med. 2017; 14(2):e1002232. PMC: 5308803. DOI: 10.1371/journal.pmed.1002232. View

Choi S, Seligman H, Basu S . Cost Effectiveness of Subsidizing Fruit and Vegetable Purchases Through the Supplemental Nutrition Assistance Program. Am J Prev Med. 2017; 52(5):e147-e155. PMC: 5401647. DOI: 10.1016/j.amepre.2016.12.013. View

10.

Crippa M, Solazzo E, Guizzardi D, Monforti-Ferrario F, Tubiello F, Leip A . Food systems are responsible for a third of global anthropogenic GHG emissions. Nat Food. 2023; 2(3):198-209. DOI: 10.1038/s43016-021-00225-9. View

11.

Nnoaham K, Sacks G, Rayner M, Mytton O, Gray A . Modelling income group differences in the health and economic impacts of targeted food taxes and subsidies. Int J Epidemiol. 2009; 38(5):1324-33. DOI: 10.1093/ije/dyp214. View

12.

Springmann M, Sacks G, Ananthapavan J, Scarborough P . Carbon pricing of food in Australia: an analysis of the health, environmental and public finance impacts. Aust N Z J Public Health. 2018; 42(6):523-529. DOI: 10.1111/1753-6405.12830. View

13.

An R . Nationwide expansion of a financial incentive program on fruit and vegetable purchases among Supplemental Nutrition Assistance Program participants: A cost-effectiveness analysis. Soc Sci Med. 2015; 147:80-8. DOI: 10.1016/j.socscimed.2015.09.032. View

14.

Basu S, Seligman H, Gardner C, Bhattacharya J . Ending SNAP subsidies for sugar-sweetened beverages could reduce obesity and type 2 diabetes. Health Aff (Millwood). 2014; 33(6):1032-9. PMC: 7421782. DOI: 10.1377/hlthaff.2013.1246. View

15.

Mozaffarian D, Liu J, Sy S, Huang Y, Rehm C, Lee Y . Cost-effectiveness of financial incentives and disincentives for improving food purchases and health through the US Supplemental Nutrition Assistance Program (SNAP): A microsimulation study. PLoS Med. 2018; 15(10):e1002661. PMC: 6168180. DOI: 10.1371/journal.pmed.1002661. View

16.

Magnus A, Moodie M, Ferguson M, Cobiac L, Liberato S, Brimblecombe J . The economic feasibility of price discounts to improve diet in Australian Aboriginal remote communities. Aust N Z J Public Health. 2015; 40 Suppl 1:S36-41. DOI: 10.1111/1753-6405.12391. View

17.

Page M, McKenzie J, Bossuyt P, Boutron I, Hoffmann T, Mulrow C . The PRISMA 2020 statement: an updated guideline for reporting systematic reviews. BMJ. 2021; 372:n71. PMC: 8005924. DOI: 10.1136/bmj.n71. View

18.

. Global burden of 87 risk factors in 204 countries and territories, 1990-2019: a systematic analysis for the Global Burden of Disease Study 2019. Lancet. 2020; 396(10258):1223-1249. PMC: 7566194. DOI: 10.1016/S0140-6736(20)30752-2. View

19.

Tonnies T, Heidemann C, Paprott R, Seidel-Jacobs E, Scheidt-Nave C, Brinks R . Estimating the impact of tax policy interventions on the projected number and prevalence of adults with type 2 diabetes in Germany between 2020 and 2040. BMJ Open Diabetes Res Care. 2021; 9(1). PMC: 7813323. DOI: 10.1136/bmjdrc-2020-001813. View

20.

Mozaffarian D, Angell S, Lang T, Rivera J . Role of government policy in nutrition-barriers to and opportunities for healthier eating. BMJ. 2018; 361:k2426. PMC: 5997034. DOI: 10.1136/bmj.k2426. View