Could taxing unhealthy food help in the battle against climate change?

Taxing HFSS products led to a reduction in their consumption due to price effects.

A 10% tax on HFSS food groups, combined with subsidising fruits and vegetables using tax revenues, resulted in a 59% decline in HFSS consumption and an 11% and 7% increase in vegetable and fruit consumption.

When tax revenues were used to subsidise fruit and vegetables, greenhouse gas emissions increased by 2% .

In contrast, emissions decreased by 3% when only HFSS foods were taxed.