Key points from article :
Research conducted by the Karolinska Institute, University of Bristol, and Imperial College London analysed genetic markers to establish the link between caffeine levels, BMI, and type 2 diabetes risk.
They analysed genetic data from 10,000 people, focusing on genes affecting caffeine breakdown.
People who break down caffeine slower (meaning higher blood levels) had lower BMI and type 2 diabetes risk.
Caffeine may increase heat production and fat burning, impacting metabolism.
No connection between blood caffeine and heart diseases like stroke or heart failure was found.
While promising, confirming cause-and-effect and long-term effects requires further studies.
