Statin therapy is associated with a small absolute increase in the incidence of type 2 diabetes; however, this risk is outweighed by the significant reduction in cardiovascular events among individuals at high cardiovascular risk.

Study: Effects of statin therapy on diagnoses of new-onset diabetes and worsening glycaemia in large-scale randomised blinded statin trials: an individual participant data meta-analysis

The study shows statins slightly increase diabetes risk, but this is small compared to how well they prevent heart attacks and strokes, especially in people at high risk.

Study: Relative contributions of statin intensity, achieved low-density lipoprotein cholesterol level, and statin therapy duration to cardiovascular risk reduction in patients with type 2 diabetes: population based cohort study

This study shows that taking statins longer helps prevent heart problems in people with type 2 diabetes, which supports the idea that their heart benefits are more important than any small diabetes risk.

Study: Optimizing statin therapy for primary prevention of cardiovascular disease in type 2 diabetes mellitus patients: Exploring dose, class, and intensity

The study shows that statins greatly reduce heart problems in people with type 2 diabetes, which supports the idea that their benefits are stronger than their risks.

Study: Statin-Associated Side Effects.

The study says statins can slightly increase the chance of diabetes, but they’re still life-saving medicines, so the benefits usually outweigh the risks.