India's obesity crisis to surge: 450 million may be affected by 2050

A 2025 study published in The Lancet forecasts a sharp rise in obesity across India. By 2050, the country’s overweight and obese adult population may reach 450 million. Childhood obesity has also surged, increasing by 244% over the past 30 years. India’s dietary habits have shifted dramatically in recent decades. Traditional, nutrient-rich meals have given way to energy-dense but nutrient-poor foods, a change often called the 'nutrition transition'. This shift has worsened the burden of non-communicable diseases (NCDs).

According to the ICMR-National Institute of Nutrition, 70% of caloric intake in India comes from carbohydrates. Many diets lack sufficient protein and micronutrient-rich foods. Only 28% of adults consume the five recommended food groups, as reported by NFHS-5.

Obesity rates remain higher in urban areas and among wealthier groups. Cities like Chennai reflect this trend, with 65% of deaths linked to NCDs in the latest Tamil Nadu STEPS Survey. Urban food environments, filled with cloud kitchens and late-night eateries, contribute to overnutrition.

Overnutrition itself stems from an energy imbalance—when calorie intake exceeds expenditure. The ICMR estimates that NCDs now account for 61% of India’s total disease burden. Experts use the socio-ecological model to explain these patterns, pointing to influences at individual, interpersonal, community, and systemic levels. The projected rise in obesity highlights a growing public health challenge. With NCDs already responsible for a significant portion of illness and death, dietary and environmental factors demand urgent attention. The findings underscore the need for targeted interventions across multiple levels of society.