A split-screen image of a person standing on a scale, with a red 'overweight' label on one side, and a green 'healthy' label on the other, with a DXA📷 Photo by Tech&Space
- ★The story centers on BMI System Flawed.
- ★The practical test is whether the claim survives deployment, cost and independent verification.
- ★The wider impact depends on adoption, regulation and follow-up data from real-world use.
Research from Italy to be presented at the European Congress on Obesity (ECO 2026) and published in the journal Nutrients shows that the traditional WHO body mass index (BMI) classification system misidentifies significant numbers of people as having overweight or obesity. The study used dual-energy X-ray absorptiometry (DXA) as the gold standard technique to measure body fat. According to available information, the BMI classification system is not accurate for measuring body fat in the general population.
The World Health Organization (WHO) has a body mass index (BMI) classification system, which has been widely used to assess weight status. However, the study found that this system has limitations, particularly when compared to more precise measurements like DXA. For instance, DXA can differentiate between lean mass and fat mass, providing a more accurate picture of an individual's health.
A large study — with real limits
Secondary visual angle showing the practical mechanism behind "A large study — with real limits".📷 AI-generated / Tech&Space editorial composite
The study's findings have significant implications for public health, as incorrect classification of weight status can lead to inappropriate treatment or lack of treatment. It appears that the BMI classification system is not suitable for all populations, and more precise measurements like DXA should be used to assess body fat. The research will be published in the journal Nutrients, and the European Congress on Obesity (ECO 2026) will take place in Istanbul, Türkiye, from 12–15 May.
The European Congress on Obesity is a premier event for researchers and healthcare professionals to discuss the latest developments in obesity research and treatment. The study's presentation at this conference will provide a platform for experts to discuss the limitations of the BMI classification system and potential alternatives. Additionally, the World Health Organization may need to reassess its guidelines for weight classification in light of these findings.
