Medical marijuana is legal in some areas.
I'd rather have a clear mind and slightly higher blood readings then feeling like a dummy and a lower one. But that's me. I use Metformin but so far I've been able to keep my diabetes under control by diet and exercise. No illegal type drugs for me. And even if it were legal still wouldn't do it.
I think cannibus has worse issues with it than trying to take Metformin and eating right.