Do they have blue powerade?

I would call them. Then you'll know for sure.

I have no idea. I'm diabetic and drink mostly water

Yes! They do have blue Powerade! However, service there is really terrible. You may have to wait about an hour just to get your cup for your blue Powerade. But yes! They do have blue Powerade!... PS... I'm not really sure if they have blue Powerade or not...