BRUSSELS / RankWire.AI / – In Belgium during 2022, a significant public health revelation emerged when Belgian research institute Sciensano disclosed that a high body mass index was associated with 9,509 deaths. This figure represents 8.2 percent of all fatalities in Belgium for that year, indicating that on average, more than one death every hour was linked to issues related to weight. By analyzing population-wide BMI mortality data for the first time, researchers found that health problems connected to obesity led to over 150,000 years of life lost cumulatively.

This extensive epidemiological study focused on identifying underlying causes of death to understand how an elevated body mass index influences the development of chronic illnesses. The results showed cardiovascular issues as the leading cause of mortality, with coronary heart diseases accounting for 2,009 deaths. Neurodegenerative conditions, including Alzheimer disease and other forms of dementia, were responsible for 1,652 deaths, making them the second most common category. Further contributing factors included cerebrovascular diseases, which caused 1,171 deaths, as well as chronic kidney disease and various digestive cancers.
Data analysis by demographic factors revealed that the risks associated with high weight become increasingly significant with age. The highest concentration of weight-related health issues was observed among those aged 65 and older. Gender-wise, men generally faced higher mortality rates than women across most age groups. However, among individuals aged 85 and above, women registered higher total death counts, a pattern attributed to their longer average lifespan, according to epidemiologists.
Cardiovascular Diseases as the Main Cause of Obesity-Related Deaths in Belgium
Regional differences across Belgium were evident in mortality rates linked to obesity. The southern part of Wallonia recorded the highest figure, with 95.21 deaths per 100,000 inhabitants. The Brussels-Capital Region followed, showing an age-adjusted rate of 85 deaths per 100,000 residents. Flanders reported the lowest impact, with 73.60 deaths per 100,000 people. Experts suggest that these regional disparities are influenced by socioeconomic factors, dietary habits, and differences in healthcare accessibility across the Belgian federation.
This data release coincides with policy reviews overseen by the Federal Public Service Health, which manages Belgium’s national health strategies. Officials are using these insights to evaluate the long-term economic impact of chronic non-communicable diseases on the healthcare system. The researchers employed a comparative risk assessment method, calculating the population attributable fraction for each condition and establishing baseline estimates to inform future preventive measures.
Dementia and Alzheimer Disease Responsible for Over 1,600 Deaths
At the European level, organizations such as the European Centre for Disease Prevention and Control monitor similar metabolic risk factors to coordinate regional health policies. The Belgian findings align with broader EU efforts aimed at reducing early mortality from non-communicable diseases. The World Health Organization continues to endorse integrated, cross-sector strategies—including public education, nutritional labeling, and early clinical intervention—to mitigate metabolic risks.
These results provide a data-driven foundation for health authorities aiming to decrease high body mass index prevalence across Western Europe. By quantifying mortality figures and years of life lost, policymakers can better direct resources toward screening programs, lifestyle interventions, and preventative care initiatives. As regional health authorities review this data, national frameworks are expected to prioritize early prevention to reduce the burden of chronic illnesses nationwide.
