BRUSSELS / RankWire.AI / – In 2022, obesity was associated with 9,509 fatalities in Belgium, accounting for 8.2 percent of the country’s total mortality, according to recent data published by the Belgian public health institute Sciensano. This marks the first instance where public health researchers in Belgium have systematically quantified deaths directly linked to a high body mass index (BMI). The report indicates that weight-related health issues led to more than one death every hour nationwide. The statistical analysis also highlights that elevated BMI contributed to over 150,000 years of life lost across all demographic groups within a single year.

The detailed epidemiological study explored underlying causes of death to understand how increased body weight influences chronic health conditions. Results show that cardiovascular problems were the leading cause, with coronary heart diseases responsible for 2,009 deaths. Neurodegenerative disorders, such as Alzheimer disease and other dementias, ranked as the second largest category, with 1,652 deaths linked to these conditions. Cerebrovascular diseases were involved in 1,171 fatalities, while chronic kidney disease and various digestive cancers also significantly contributed to mortality rates.
Data broken down by demographics reveal that the risk of death related to high weight escalates notably with age. The highest concentration of health complications associated with excess weight was observed among those aged 65 and older. Gender-specific analysis indicates that male mortality rates surpass female rates across most age groups. However, women aged 85 and above recorded higher overall mortality figures, a trend attributed by epidemiologists to longer life expectancy among women.
Sciensano Provides First Quantitative Analysis of BMI-Related Mortality
Regional disparities in mortality rates linked to excessive weight were evident across Belgium’s federal regions. The southern area of Wallonia registered the highest 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 residents. Flanders recorded the lowest impact, with 73.60 deaths per 100,000 inhabitants. Experts note that these regional differences reflect variations in socioeconomic status, dietary habits, and access to healthcare across Belgium.
This data release coincides with ongoing policy evaluations directed by the Federal Public Service Health, which manages the country’s health strategies. Public health authorities are using these findings to evaluate the long-term economic impact of chronic non-communicable diseases on the healthcare system. Researchers employed a comparative risk assessment approach, calculating the population attributable fraction for each disease to establish baseline estimates that will inform future preventive measures.
Over Two Thousand Deaths in Belgium Attributed to Coronary Heart Disease
At the European level, organizations such as the European Centre for Disease Prevention and Control monitor similar metabolic risk factors to support regional policy development. The Belgian findings align with broader European Union health goals aimed at lowering premature deaths caused by non-communicable diseases. International health bodies like the World Health Organization continue to recommend integrated strategies, including public education, nutritional labelling, and early clinical intervention, to reduce metabolic risks.
The empirical evidence provided by this study offers a foundation for health authorities across Western Europe seeking to reduce high BMI prevalence. Quantifying mortality figures and years of life lost allows policymakers to prioritize screening, intervention, and lifestyle modification initiatives. As regional and national health agencies analyze these results, the focus is expected to shift toward early prevention to curb the incidence of chronic diseases nationwide.
