
Recent research suggests that the amount of caffeine circulating in your bloodstream may influence your body fat levels and risk of developing type 2 diabetes.
A study conducted by scientists from the Karolinska Institute in Sweden, the University of Bristol, and Imperial College London utilized genetic markers to explore this connection.
They discovered that individuals with genetically higher plasma caffeine concentrations tended to have a lower body mass index (BMI) and reduced whole-body fat mass.

Moreover, these elevated caffeine levels were associated with a decreased risk of type 2 diabetes, with approximately half of this effect mediated through BMI reduction.
The researchers propose that caffeine’s role in increasing thermogenesis and fat oxidation could be key mechanisms behind these observations.
While these findings are promising, the study emphasizes the need for randomized controlled trials to determine whether calorie-free, caffeine-containing beverages might aid in reducing obesity and type 2 diabetes risk.