A healthy tax: On taxing foods high in fat, sugar and salt

India is experiencing a nutrition transition, shifting from traditional diets to highly processed, energy-dense foods, leading to a 'dual burden of malnutrition'. While government programs like the Integrated Child Development Services and PM POSHAN historically targeted undernutrition and stunting, the rising prevalence of obesity requires a paradigm shift in public health strategy. The National Family Health Survey (NFHS-5) data underscores this crisis, showing significant increases in adult obesity and diet-related non-communicable diseases (NCDs) like diabetes and hypertension. The ICMR-NIN report estimating over 17 million obese children and adolescents highlights a severe future public health burden. Addressing this requires a life-cycle approach, starting with regulating sugar in baby foods and ensuring healthy school food environments, as recommended by the Parliamentary Standing Committee.

Regulating unhealthy food consumption involves complex governance mechanisms and behavioral economics. The proposed mandatory front-of-pack nutrition labelling (FOPNL) is a crucial regulatory tool. Unlike the current complex back-of-pack information, FOPNL provides clear, accessible warnings (like the star rating system or warning labels) to help consumers quickly identify HFSS foods. This aligns with the 'nudge theory' in behavioral economics, subtly guiding choices without restricting freedom. The Food Safety and Standards Authority of India (FSSAI) plays a central role here. However, implementing FOPNL faces resistance from the food industry. Effective governance requires balancing public health priorities against industry interests, potentially requiring stricter regulations on marketing, especially advertising targeted at children, to create an enabling environment for healthy choices.

The economic rationale for a health tax on HFSS foods (often called a 'fat tax' or 'sugar tax') is rooted in addressing negative externalities. Consumption of these foods leads to diet-related NCDs, imposing significant healthcare costs on the state and reducing workforce productivity. By levying a Pigovian tax (a tax on market activities that generate negative externalities), the government aims to internalize these costs, making unhealthy foods more expensive and thereby reducing their consumption. Internationally, over 133 countries, including Colombia and Norway, have implemented such taxes, often using a tiered system where the tax rate increases with the sugar or fat content. The revenue generated can be ring-fenced to fund public health initiatives or subsidize healthier food options, creating a double dividend for society.