Why losing weight may not be enough to prevent type 2 diabetes
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- German Center for Diabetes Research (DZD) scientists found that individuals in Tübingen's type 2 diabetes risk cluster 5 showed rising blood glucose and declining insulin secretion despite losing 8% of body weight and maintaining it for up to nine years.
- Tübingen Lifestyle Intervention Program (TULIP) participants in cluster 5 maintained substantial weight loss but still faced a persistently high risk of developing type 2 diabetes, unlike those in other risk clusters.
- Cluster 5 individuals exhibited severe insulin resistance likely linked to fatty liver disease, which may impair pancreatic beta cell function and reduce insulin secretion.
- Norbert Stefan led the study and expressed surprise that long-term weight loss did not improve blood sugar regulation in cluster 5, highlighting a critical gap in current prevention strategies.
- Diabetes journal published the findings, which suggest that one-size-fits-all lifestyle interventions may fail for people with specific metabolic profiles like those in cluster 5.
Why it matters: People in cluster 5 face continued diabetes risk despite successful weight loss, meaning standard prevention guidelines may not protect them. Without tailored treatments targeting fatty liver and insulin resistance, this group could experience higher rates of diabetes and cardiovascular disease even with lifestyle changes.
