A American study published in June 2017 in PLOS Medicine, Reducing US cardiovascular disease burden and disparities through national and targeted dietary policies: A modelling study, compared different policy interventions to reduce cardiovascular diseases. The interventions included:

  1. A 10% tax on SSBs
  2. A 10% subsidy on fruits and vegetables
  3. A 30% subsidy only for citizens participating in the Supplemental Nutrition Assistance Program (SNAP)
  4. A national media campaign on buying more fruits and vegetables and less SSBs
  5. A combination of the above

The study demonstrated that the 2nd intervention was by far the more cost-effective, up to five times more compared to the 10% tax on SSBs.

The authors warn readers that their model did not look at the financial implications of the different interventions.

The full study is available here.