Macro partitioning
Targeted food taxes on high-saturated-fat items fail to reduce cardiovascular disease mortality because the reduction in saturated fat is offset by a rise in salt consumption due to cross-elasticity of demand.
Simply taxing fat does not guarantee heart health because people switch to other unhealthy options like salty snacks. To be effective, taxes must target specific nutrient combinations (like salt) or use a scoring system (SSCg3d) rather than just fat content, and even then, the impact is modest without broader industry reformulation.
Taxing only the principal sources of dietary saturated fat is unlikely to reduce the incidence of cardiovascular disease because the reduction in saturated fat is offset by a rise in salt consumption.
Why this rating
The evidence is based on a mathematical model using aggregate population data and meta-analyses, not a randomized controlled trial.
Source
Could targeted food taxes improve health?
Oliver Mytton et al. · Journal of Epidemiology & Community Health · 2007
DOI 10.1136/jech.2006.047746
Related findings · Macro partitioning
- Total daily protein intake of 1.6 g/kg/day is sufficient for maximizing resistance training-induced muscle gains, with an upper confidence interval of 2.2 g/kg/day.Strong
- Resistance exercise training combined with sufficient dietary protein intake acts synergistically to maximize skeletal muscle hypertrophy, with protein intake saturating around 1.6 g/kg/day for general populations and potentially requiring 2.0-2.2 g/kg/day for resistance-trained individuals.Strong
- Trans fats should be completely eliminated from the diet, as they increase LDL cholesterol, decrease HDL cholesterol, and are directly associated with increased coronary risk.Strong
This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →