BRUSSELS / RankWire.AI / – In 2022, data published by Belgian public health institute Sciensano indicated that obesity was associated with 9,509 fatalities across Belgium, accounting for 8.2 percent of the country’s total mortality that year. This report marks the first systematic effort by public health researchers in Belgium to quantify deaths directly attributable to an excessively high body mass index within the population. Statistical analysis suggests that weight-related health issues caused more than one death per hour nationwide, resulting in over 150,000 years of life lost across all age groups and demographics.

The detailed epidemiological study delved into underlying causes of death to understand how elevated body mass index contributes to chronic illnesses. Findings show that cardiovascular diseases are the leading cause of obesity-related mortality, with coronary heart diseases responsible for 2,009 deaths. Neurodegenerative conditions, including Alzheimer disease and other forms of dementia, ranked second with 1,652 fatalities. Cerebrovascular diseases contributed to 1,171 deaths, while chronic kidney disease and various digestive cancers also played significant roles in the mortality data.
Analyzing demographic patterns reveals that the risk of death linked to excess weight increases notably with age. People aged 65 and above experienced the highest rates of health complications related to obesity. Gender-specific analysis shows that male mortality rates surpass female rates in most age brackets; however, among those aged 85 and older, women show higher total death figures, a trend attributed to their longer average lifespan, according to epidemiologists.
Obesity Responsible for 8.2% of Belgium’s Deaths, Official Study Shows
Regional disparities in obesity-related mortality are pronounced across Belgium’s different areas. The southern region of Wallonia recorded the highest death rate, with 95.21 deaths per 100,000 residents. The Brussels-Capital Region followed with an age-standardized rate of 85 deaths per 100,000 inhabitants. Flanders reported the lowest figure, with 73.60 deaths per 100,000 residents. Public health experts point out that these regional differences mirror socioeconomic variations, dietary habits, and disparities in healthcare access across Belgium’s federal regions.
This data release coincides with ongoing policy reviews overseen by the Federal Public Service Health, which manages national health initiatives. Officials are now using these insights to evaluate the long-term economic strain on Belgium’s healthcare infrastructure caused by chronic non-communicable diseases. The researchers employed a comparative risk assessment approach, calculating the population attributable fraction for each condition to establish baseline figures that will inform future preventive health strategies.
Methodology: Quantifying Lost Years of Life Through Risk Assessment
At the European level, organizations like the European Centre for Disease Prevention and Control monitor similar metabolic risk factors to coordinate policy efforts regionally. The Belgian findings align with broader EU health monitoring objectives aimed at decreasing premature mortality caused by non-communicable diseases. The World Health Organization’s international health guidelines continue to recommend integrated, multi-sectoral approaches, emphasizing public education, clear nutritional labeling, and early clinical intervention to address metabolic risks.
These results provide a solid evidence base for health authorities aiming to reduce high body mass index prevalence across Western Europe. By measuring both total mortality and years of life lost, policymakers can better prioritize screening initiatives, intervention programs, and lifestyle modifications. As regional and national health agencies interpret the data, a focus on early prevention and chronic disease management is expected to be central to Belgium’s future health strategies.